cum-on-a-pizza is a masturbation game that guys play, similar to cum-on-a cookie, except all the guys jack off on a large pepperoni pizza and the last dude to have a cumgasm, has to eat the cummiest piece of pizza -- and the guys keep doing that until the pizza is gone.
We played cum-on-a-pizza and I kept losing, so I had to eat a lot of cummy pizza -- yum!
450π 511π
national cum in a pizza day is on September 22, or on September 11, depending on my mood.
*this definition is not related to National cum on a pizza day*
guy 1: βyo bro happy national cum in a pizza day! i just ordered some Little Caesarsβ
guy 2: βLETS FUCKING GOOOβ