tentpiece

a cocky person. (typically male.) braggart. egotist. blowhard. a tentpiece usually believes that he has skills or qualities which he simply does not--or in the off chance that he does, it is in an extremely limited capacity, at best. this over-confidence often manifests itself as vanity, bossiness, conceit, or an overly-cocksure air. those in the company of a tentpiece regularly must exercise great restraint from verbally and physically bitch-slapping him. 'tentpiece' makes reference to the phrase 'pitching a tent,' (i.e. tentpieces tend to be turned on primarily by themselves). a tentpiece oft overcomes for various (commonly sexual) shortcomings with blatant arrogance and conceit in an effort to prove their masculinity.