"hey rory, i was totally frosting your cupcake last night "yo, thanks steve, that was so nice of you to frost my cupcake
frosting your cupcake can be defined as when a man shoves his finger into a woman (or man)'s anus, resulting in poop ending up on one's finger
""hey rory, i was totally frosting your cupcake last night "yo, thanks steve, that was so nice of you to frost my cupcake" What is the definition of "frosting your cupcake"?