Manstopper 

Can refer to any large caliber gun or bullet that will immediately "stop" a person with one hit. You might live from receiving a limb shot. But there is little to no chance of surviving a hit to the head or body. .50 AE, .45 ACP and .357 Magnum are popular calibers know as manstoppers. The larger the better.

Dirty Harry didn't mess around. His .44 Magnum was an absolute manstopper. Do you feel lucky punk?

Manstopper by MRocco October 30, 2010

Manhopper 

A woman who goes from man to man in a short period of time.

Look out ladies, you better guard your man.... that lady is a manhopper.

Manhopper by mjmirv July 20, 2007

Manhopper 

Typically a girl before she become slut. This is usually the middle ground before becoming a slut. for example, in high school when a girl doesn't want to have sex but still crushes on multiple boys even though she has one or two other boyfriends. She promptly leaves any of them when she gets bored. They crave attention and usually restrain from sex to save their reputation.

Guy 1: So how is it with you and Lily?
Guy 2: Oh yeah, I can't believe I ever fell for her because she was just another Manhopper
Guy 1: Yeah, that sucks...

Manhopper by Lobster and Crab August 24, 2016

Manhopper 

someone who hops over men

mary is a manhopper, and she has no problem admitting it.

Manhopper by midochondria December 15, 2008

manbopper

a guy who likes to comment about his butt

ryan mark is a manbopper

manbopper by OGBSDJIUGJKNE June 9, 2009

Man stopper 

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.

Man stopper by Plumb Nutz November 30, 2019