Man Slam 

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."

Man Slam by Urban Dictionary June 30, 2008

Slam Man 

A video or movie that involves The Grinch from How the Grinch Stole Christmas.

"Yo dude, the new Slam Man just came out!!"

"No way!!"

Slam Man by MISTER MlSTER October 4, 2023

Slammin' Sam The Backdoor Man 

The ultimate anal pounder. Known to be relentless.

Dan: Did you hear about what Slammin' Sam The Backdoor Man did to Alexis last night?
Me: No?
Dan: He tore her up. I hear she's bleeding today.

Slammin' Sam The Backdoor Man by lucyslking April 4, 2010

slamming the man flesh 

in a violent fit of sexual tension, usually after breaking up with ones girlfriend/slam piece, one will tug his meat to his hearts delight, or until his anger is calmed.

i was so pissed when my main bitch broke up with me that i was forced to begin slamming the man flesh as soon as i got home.

slamming the man flesh by Butthole Mcgee April 21, 2008

Carolian manslam 

(origin: SC, from the SC Album by Da Meng)
Defined as the humping of one man by another in which the latter uses a running start to attack his unsuspecting victim.

Process:
1: "Hey man, meng meng meng meng meng" (meng=men)
2: "meng meng meng meng meng meng"
*running*
1: *high voice* "OOOOOOOWWWWWWW IT BURNS"

or

I Carolian manslamed him in the hall!

Carolian manslam by SCguy July 20, 2008

ManSlammer 

The term used to describe a guy who is clingy, annoying or just won't leave you alone.

Hey can I go to the store with you? Hey can I ride in the car? hey bro can I go with you to the party?

NO STOP BEING A MANSLAMMER!!!!

ManSlammer by Sorrykid June 6, 2011

manslam 

Buttsex between two men

I'm gonna manslam John later

manslam by Kuronekox January 12, 2015