Ejaculating a weeks worth of semen onto a females stomach upon climax.
( A weeks worth of ejaculate has the same color and texture of a light deli mustard.)
Often associated with "swordfighting", it is when two men are cuddling and their erect penis' touch. This may also become a game of "Thumb War" were one man tries to pin the other man's penis against his stomach.
Alex Boudreau started up a game of tummy sticks in which i lost. He's too good, i think he plays alot.