Top Definition
To fuck a girl so hard that her head goes through a wall, then your buddy on the other side of the wall sticks his dick in her mouth.
"Hey girl, whats wrong with your head?"
"I got Man Slammed."
"You should have been wearing your Viking Helmet."
#cincinnati bowtie #singapore subway #donkey punch #dirty sanchez #cleveland steamer
by Urban Dictionary July 10, 2008
Buttsex between two men
I'm gonna manslam John later
#anal #gay #butt sex #lgbt #sjw
by Kuronekox January 12, 2015
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