When an old man marries a young woman one could say it is "like putting a marshmallow in a piggy bank", insinuating that the man cannot get an erection so it will not go in a young tight pussy.
Did you know old man jones married that hot stripper? It must be like putting a marshmallow in a piggy bank.
by tl_terry January 22, 2010

n. For a male to chunk marshmallows into a woman's anal cavity, then proceed to have anal intercourse with her until ejaculation. The fecal-laced marshmallow mixed with semen will pour out. The male then paints her face with it.
I pulled the Stay-Puff Marshmallow Man Maneuver on her and she looked like a brownish snowman! Ha! Ha!
by Stan Winston January 21, 2006

by mushroomcloud_motherfucker March 2, 2022

A female who has titts mainly because of how obese they are and their excess fat creates the illusion of valid breasts.
Matt: Hey dude, check out the titts on the new girl!
David: Man, that doesn't count, she's a marshmallow!
David: Man, that doesn't count, she's a marshmallow!
by thelegendarysoldier July 27, 2016

by Hawaiian Friday May 29, 2022

The male act of planking between 2 beds, likely in a hotel room, with the participant's butt faced toward the floor while masturbating to completion. The subsequent orgasm will produce ejaculate that will spray outwards and upwards dripping down onto the floor below, thus making the human "bridge" white like marshmallow.
by Paul Porter May 2, 2016

When you gather all the ingredients to make marshmallow fluff together, and right before you whip it all together, violently nutting into it.
"While Barbara was making marshmallow fluff, I waited until she wasn't looking. Than I ran over and whipped up a Malaysian Marshmallow Fluff"
by JamesNewton February 7, 2025
