(adj.) Inspiring little other than an ironic smile. Said particularly of the attitude of someone who finds exciting or probable that which you find resolutely unlikely or entirely disinteresting.
"Brian thinks his automatic cheese dispenser is going to make him a rich man."
"Mirthworthy"
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