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1.
Someone who decides to act bold and cocky around other individuals that are weaker/smaller/less intimidating than them but crumble once they are in the presence of someone who towers over them (bigger).
Joe lolly: Hey mark, that guy called you a fag!

Mark: Where?!

Joe lolly: That big dude in behind you.

Mark: Oh, well he's kinda big, but if he were my size I would take him on....

Joe lolly: Dam bro, your a choosey tough guy.
by Jay-Si January 19, 2013