Quite simply a man stopper is a tampon. Encountering a tampon inside of a woman while attempting to have sex with her will stop a man in his tracks.
We were making out, I got her top off, she seemed good to go but when I tried to finger bang her, well God dammit I ran headlong into a man stopper! That was the end of that night.
by Plumb Nutz November 30, 2019
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A booger that covers all of the inside of your nostril. When blown out, it is usually round and sometimes bloody.
"Ooooh, I just blew out a big stopper."
by Tater Bater May 7, 2020
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While your partner is sleeping quickly and forcefully shove your penis into her vag or brown eye to wake her.
That bitch wouldn't put out last night so I gave her the sleep stopper!

I couldn't put up with her snoring anymore so I sleep stopped her.

Bro, you better hope your cell mate doesn't give you the sleep stopper!
by Ovarian Myth Sports February 9, 2010
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Just as a male is about to ejaculate, he puts an item into his urethral opening to prevent ejaculation from occurring.
"Bob was about to cum, when his mom entered his room, and he had to do a cork stopper."
by Supaphly October 27, 2013
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When you're banging a girl doggy style and she's about to climax, grab her by the ankles, stand her on her head and cram your fist down her dank exit hole, thus ruining her orgasm.

Also see Inverted Particle Accelerator for more sexually deviant partners.
Hey man, why is your girlfriend walking so funny?

I gave her the classic inverted show stopper last night and now her pelvis is out of alignment
by Whirlybird McFartsalot March 24, 2021
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A girl with god given abilities to get your dick soft.
“Bro that shawty a stick stopper
by Damian Priest October 20, 2022
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