Sex act in which you and your partner are in a 69 position and one shits in the others mouth. After said shitty situation you proceed to have anal sex, then each give each other a wet willy and finish in the other ear.
Dudebro1: Dude I tried a Wet Bessy last night and it was so cool bro.
Dudebro2: Dude how was it bro?
Dudebro1: Dude the shit was legit frothy and the wet will my was so dope bro.