The Miami Dolphins have suspended Pro Bowl offensive lineman Richie Incognito following allegations of misconduct from teammate Jonathan Martin. Incognito played for the University of Nebraska before he was drafted in 2005 by the St. Louis Rams. He also played for the Buffalo Bills in 2009 before joining the Dolphins in 2010. 
Incognito walks to the field from the locker room during a Buffalo Bills game in December 2009. 
Incognito, seen here playing for the Rams in December 2006, was suspended by the Dolphins for detrimental conduct. ESPN, NFL.com and other media outlets reported that Martin's representatives submitted voicemails to the league and to the Dolphins containing racial slurs from Incognito and threats of physical violence. Martin left the Dolphins in the middle of the season. 
Incognito stands on the sidelines during a Rams preseason game in August 2008. Several media outlets said Martin had left the Dolphins because of bullying, something Incognito denied on Twitter."Shame on you for attaching my name to false speculation," one of the tweets said, according to Bleacher Report. That tweet and others addressed to various media outlets were deleted later. 
The Rams released Incognito in December 2009 after an argument during a game with then-head coach Steve Spagnuolo. 
Incognito stretches during the last day of Dolphins minicamp in June 2010. 
The Sporting News takes a yearly poll of NFL players, and in 2009 they dubbed Incognito the dirtiest player in the league. 
Incognito arrives on the red carpet for ESPN The Magazine's NEXT Party in February 2011. 
Incognito "was really kind of a big teddy bear off the field," said Chris Draft, who played with Incognito when both were with the Rams in 2007 and 2008. "My wife actually loved him." 
Incognito is introduced during a Dolphins game in September 2012. 
Incognito and Martin talk on the sideline during the second half of a preseason game August 24. 
Incognito played in his first Pro Bowl in January. 
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- LZ Granderson says men have an ingrained fear of expressing their emotions
- They use "man up" as a tool to help enforce the prohibition against acting human, he says
- Granderson: This mechanism was in play in the Miami Dolphins locker room
- He asks: Who's getting the blame? The bullies or the victim?
Editor's note: LZ Granderson is a CNN contributor who writes a weekly column for CNN.com. The former Hechinger Institute fellow has had his commentary recognized by the Online News Association, the National Association of Black Journalists and the National Lesbian and Gay Journalists Association. He is a senior writer for ESPN as well as a lecturer at Northwestern University. Follow him on Twitter @locs_n_laughs.
(CNN) -- You know those electronic collars that zap dogs that stray outside their electronic fences?
That seems to be the purpose of everyone's favorite and seemingly innocuous phrase, "man up."
Just mumbling those two words in a typical guy's direction delivers a psychological shock that discourages him from venturing outside the restrictions of our traditional view of what it means to be a man.
Famed author Norman Mailer, known for his machismo and string of women, once said "tough guys don't dance" -- something I'm sure would be news to the men of the NFL, who are known for their machismo, string of women and, well, dancing in the end zone wearing tights.
But that's the beauty of "man up." Sometimes it's the punchline shared among friends. Sometimes a mandate from strangers. At no point is it uniformly defined.
Dolphins' Incognito-Martin mess: Is coach to blame?
The irony in all of this, of course, is that it takes more strength to follow one's own parameters than to stick to those handed down by the collective. A truth we're constantly reminded of in Bible verses; Robert Frost's "The Road Less Traveled"; and pop culture fixtures, like the 1976 flick "Car Wash," in which the cross-dressing character, Lindy, confronts a critic with the iconic line: "I'm more man than you'll ever be and more woman than you'll ever get."
Teammates say Incognito was no bully 
Incognito 'crossed the line' 
Bullying part of NFL locker room culture And yet, despite these constant reminders of the strength it takes to be ourselves, when presented with an opportunity to recognize that strength, someone yells "man up" and we all retreat back behind the electronic fence: ridiculing, teasing, sometimes bullying, those who don't immediately follow suit.
Because of this, it's hard to ignore the comical dichotomy that is American masculinity today: boisterous grandstanders too afraid to look in the mirror and deal with their own crap. A nation of men stunted by what is known as alexithymia -- an inability to "discriminate the usual nuances of emotional life" as defined by Jason Thompson, author of "Emotionally Dumb: An Overview of Alexithymia."
Psychologist Ron Levant believes "a mild form of alexithymia is very widespread among adult men." He says it's a product of the "male emotional socialization ordeal, which requires boys to restrict the expression of their vulnerable and caring emotions and to be emotionally stoic."
Which makes sense, when you think about the first time we hear things like "man up" or "be a man." It's never when we're suppressing sensitivity, it's only when we express it. Lack of connection with our feelings hurts our ability to empathize. And if we can't feel with others, how can we truly feel for others?
This complexity is being played out in South Florida this week. The Sun Sentinel is reporting that Richie Incognito, the man accused of bullying his Miami Dolphin teammate Jonathan Martin, was told by coaches to "toughen up" Martin.
"I'm just trying to weather the storm right now," Incognito said. "This will pass."
And there's plenty of evidence to suggest he's right, for it is Martin -- the Dolphins lineman who left the team, exasperated by months of bullying -- who is widely being criticized for not manning up.
As Giants safety Antrel Rolle tweeted, "in this world in general people will do what u allow them to do." He was referring to his interpretation of Martin's inaction, but that could easily be applied to the group of similarly sized men who ganged up on young Martin and dubbed him "Big Weirdo" because he wasn't the "norm." Incognito, a designated team leader, was emboldened because none of Martin's teammates manned up and stopped him.
Or worse yet, maybe someone did want to stop him but was too afraid to cross the "man up" electronic fence, a fence few men -- including myself -- are willing to cross on a regular basis.
So we do what was done to us -- tell little boys not to cry, chastise classmates for being soft-spoken, let a co-worker know that he needs to grow a pair. It's all fun and games until someone's feelings get hurt, right?
And then you read a story, like the one of 17-year-old Steven Liu -- who last week jumped to his death from a pedestrian bridge near his high school, and who some said was a victim of bullying -- and you remember: Sometimes the continuous call to fit in, to "man up," hurts more than just our feelings.
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The opinions expressed in this commentary are solely those of LZ Granderson.
