Credit-Card-Manoeuvre

When someone slots their bobular organ between the cheeks, (rectal) of another sexual friend, with the goal to make Bumhole-nipple contact (a BPN procedure), which causes immediate Cumplosion.

Woah, the fuck? Did you just Credit-Card-Manoeuvre me. Get your boobies out of my bum hole. Greg just did the credit card manouveure on Cindy Bigtits.