A fart that you successfully keep from escaping but decides to let loose inside and resembles your stomach growling loudly but clearly is not coming from your stomach.
I held that fart in but everyone still heard my butt growl. I was so embarrassed when my butt growled in the middle of class.
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