When you cum inside a girl's butt, or men if you play for the other team, and keep pounding until your ejaculate becomes lumpy like churning butter. You then extract the dick butter and put it on your morning toast alongside your orange juice.
wen a horny customer has exams and no girlfriend he has 3 tom hanks in a short period without washing his mushroom or the inside of his hood helmet a butterry substance forms and must be washed immediately before his jocks stink.
man i was a horndog this morning and wanking got out of hand....to lazy to scrub my helmet over the sink so next thing ya know dick butter was on the cards!