Overly vocal declarations of one's physical prowess and penchant for threatened violence. This sort of child-like behavior is usually found in small-statured people who feel they need to make up for their physical inadequacy somehow.
OMG, what I wouldnt give to have 10 minutes with this son of a bitch in a dark alley. I wouldnt kill him, no sir, that's the easy way out. I WOULD MOTHERFUCKIN' BREAK HIM! I would relish all the creative ways I can think of to break every bone in his body. Id leave him just brain damaged enough for him to realize the plight he is in. The absolute hatred I harbor for this man permeates every fiber of my soul and body.