Usually used to mean acting and dressing flamboyantly for women, but the word's roots actually lay in the competitive eating circuit.
To peacock is to thrust one's gut outwards in a flamboyant fashion. The peacocker will parade about the room with his gut out for the world to see. It's a sign of pomposity often seen after a hard fought victory. More and more though, arrogant, up and coming eaters will peacock in public settings or at a non-competitive eating function. This is offensive and occasionally leads to fights.

While there's nothing wrong with a little peacocking here and there, one should not abuse their gut and peacock too frequently. One should respect their gut and the guts of others by keeping their own gut to themselves. Only peacock when you have earned the right!
Slugger peacocked all day, everyday for a straight week, needless to say, Acun and Big Kahuna were outraged and challenged him the next day at the local Golden Corral.
by The REAL Acun October 15, 2010
28 more definitions
Top Definition
1) A song by Katy Perry from her album "Teenage Dream".
2) Penis (as implied by the lyrics to the song "Peacock")
Lyrics from Peacock song: I wanna see your peacock cock cock...
by steviep24 October 14, 2010
verb: To dress in flashy or outlandish clothing to attract women.
alternately: To show off for women.
He's trying to peacock for the ladies, but I think he dresses like a homo.
by Vomitorium November 16, 2005
Normally an English gentleman - Dresses smartly and to an untrained eye has the look of a preppy - They have exceptional etiquette and are from wealthy backgrounds - Peacock's have class.

They don't shop for Jack Wills or try to follow the trend - they have a unique style.
"Oh yeah you know that guy" - "he's such a Peacock"
by WhynotMike? February 03, 2010
A guy who acts normal around people he knows/is used to but gets loud and starts acting like a douche (similar to a peacock in mating season) when around, but not limited to, attractive women. This can also apply to women but that term would be defined as shecock.
Last night Phil saw this hot chick in Starbuck's and he was about to make his move on her until this total douche came along and started being a peacock. Needless to say she ran off and he was left watching bestiality mongoose porn again...
by Bobby Dowell March 18, 2008
A person (usually male) dressing, acting or talking in a way to draw an access amount of attention to themselves usually deriving from a lack of attention as a child, a bit of ego-mania and causing surrounding onlookers to hate their fucking guts.

It's the adult equivalent of saying, "Hey mom, look at me. Look at me! LOOK AT ME! Watch what I can do!"

The peacock can take many forms. This can be a Jersey shore asshole or a hipster fuck. Multiple polos with the collars up or massive ears plugs and tattoos on the neck. The result is the same.
Dude 1: Why is that guy wearing a top hat in the bar?
Dude 2: Because he's a peacock motherfucker

During a conversation at a party:

Guy 1 to guy 2: Fuck, man. Last night work was a nightmare. Right when I was about to get off work my boss came in and said...

Peacock with his shirt off: (walks through conversation) Hey guys, you see anything you like??

Guy 1: No. So anyways, my boss says...

Peacock: (rubs nipples) Are you sure you don't see anything you like?!?!

Guy 1: Shut the fuck up, you peacock-motherfucker before I punch you in the dick
by jakedillryla December 20, 2011
thumbing a girls ass leaving your fingers facing up and spread as far ass they'll go....works best during doggy style
That girl was diggin my cock already but she fuckin squirted like a waterfall when I peacocked her ass
by Tommy2Fists September 15, 2005
A peacock is essentially a small dick; a dick the size of a pea.
"So how was the sex last night?"
"Disapointing, he was a total peacock and I couldn't feel anything!"
by chickenhater October 02, 2012

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