The mayonnaise packet is a sexual activity in which someone cream-pies someone and then proceeds to ground-pound their abdomen causing the "mayonnaise" to come out of the packet.
by Squeem puncher August 07, 2021
When a girl asks, during sex, to receive the man's load on her, after the man has (or is currently) cumming into a condom, but not wanting to disappoint, the man distracts the girl and squeezes the contents of the now soiled condom onto the girl.
by D. "Sha Nay Nay" Footle July 28, 2007