A sexual position used by older married couples where the woman (little kitten) gets on all fours and purrs. The man (big dog) enters her from behind and starts to bark, furiously. When finished, big dog takes a walk and leaves little kitten a mess to lick off.
Mike is taking a walk again. Him and Donna must have done the old big dog little kitten again.
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