A freakish row of teeth that, like a unibrow, seems to consist of a singlemass of unbroken, tooth-like substance when a person smiles. Akin to a mouthguard made with a single, gigantic tooth.
I am sick of seeing Tiger Woods and his ridiculous unitooth on TV all the time.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi