Giving a girl a mouthful of sperm. Since it has a consistency similar to mayo, combined with a girls mouth it immulates what having a mayo sandwich in her mouth would look like.
Peter North: Ready for this facial?

Girl:No, I'd rather you give me a mayo sandwich!
by Erndigla April 13, 2008
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When you jizz in between a hoes titties, squeeze her melons together, and have her lick the cum in between them
Last night my bitch was hungry so I made her a mayo sandwich extra salty just the way she likes
by Duck monster February 26, 2014
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When you jizz in between a hoes' titties, squeeze her melons together, and have her lick the cum in between them
Last night my bitch was hungry so I made her a mayo sandwich extra salty just the way she likes it
by Duck monster February 26, 2014
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Get the Mayo sandwich neck gaiter and mug.
When two white people have sex, ejaculate, and then lay on top of each other with cum in the middle.
He collapsed on top of her, making a white bread mayo sandwich.
by whitebreadmayosandwich March 25, 2017
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Two Shemales cum on your back and chest, effectively making you a mayo sandwich.
Jonny OH YEAH BABY MAKE ME A FUKKIN MAYO SANDWICH..

Shemale 1- ILL GET THE FRONT
Shemale 2- ILL GET THE BACK
by tips300 April 01, 2020
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When 3 lesbians get together and scissor and at least one of them has an STD/STI or at least a yeast infection Hence the "Cheese"
You hear about Carly, Alex, and Jenny? Those three had a Cheese and Mayo Sandwich. One of em has herpes and one of em has a yeast infection and Alix is a squirter
by CheekyBooty February 28, 2021
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