The giant indent left in the couch by one's posterior after an extended period of sitting. Often seen in conjunction with couch potato-itis.
The assdent your mom left behind after last night's episode of Desperate Housewives was so deep that we lost the remote, a half-eaten turkey burger, and someone's cat.
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