Home › Words › M › manstoppermanstoppermanstopper · noun — A weapon, bullet, dog, etc. that can quickly and reliably incapacitate a person.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom man + stopper.nounA weapon, bullet, dog, etc. that can quickly and reliably incapacitate a person.Definitions & examples from Wiktionary (CC BY-SA 3.0).