Someone who flaunts there social life on facebook.
Joe Blow's Status - i am going to the toilet
FB Friend -Joe Blow is such a peacock
by crappy stackie June 22, 2011

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A man who dressed up, done hair and posed for a profile picture to try make himself look good but resulting in looking like a complete melt.
me: dude have you seen this pussys profile pic.
friend: i know man what a fucking Peacock.
by jerkcrackhead November 18, 2010

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A man holding court with ladies. Comes off in a non-subtle, vain and superficial manner.
"He was in the bar last night playing peacock"
by AntoniaC123 July 16, 2008

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The act of legally cheating on your wife/girlfriend by having another woman rub her chest up and down on your back like a peacock. It's not cheating because you aren't using your hands or making eye contact.
Peacock me baby. Peacock me.
by adabicee March 22, 2010

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<name for a girl or female who thinks she is much better than anyone else>
person: "..and yeah, she said that everyone at that party was totally lame and she d rather spend the night anywhere else"
person2: "that gal's such a PEAcock!"
by eli.za.bet.h June 15, 2009

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1) A person who smells real bad and claims he has a large dick. Nobody likes this person.

2) A type of bird.

3) A man who is scared of women he does not know.
1. Molly: OMG, did you see Ivan?
Susie: Yeah hes such a peacock, I cant believe i went out with him.

2. I saw a peacock at the zoo.

3. Ivan acted like such a peacock at the party last night.
by Anomynous2 April 07, 2008

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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

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