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!
2) A type of bird.
3) A man who is scared of women he does not know.
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.
"Ehhwit" class, let's talk how a computer is a "robut."