The posterior side of an attractive female. An ass of extraordinary quality. Big, round and most times heart shaped. Often found on nice gals. Not to be mistaken for a "fat ass".
Oh my, look at Lindsey! Her jeans look painted on. She's got one fat pooper!
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