Anotherterm for saying "fuck it" but in a nastier way of using a play on words. (can also be spelled "but, fuck it!"
Gal: Should i buy this shirt?
Pal: You know your mom has one similar to this one?
Gal: But I like this one
Pal: She has the same one! Ahh, buttfuckit! just get it
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