When one heterosexual man (Man A) runs up behind another (Man B) , jumps, pushes of the Man B's shoulders, and humps the Man B as high up on his back as possible. This is usually done to show Man A's dominance over Man B, or to make Man B subservient.
Rob: Dammit Steve! Quit Man Humping me! It's annoying as hell!
Steve: Maybe I would if you weren't such a little bitch.
Steve: Maybe I would if you weren't such a little bitch.
by Nicky Nick and The Funky Bunch October 18, 2009
When two fully clothed (non) gay men kiss and frolick with one another in a public display of animalistic psuedo-affection.
Chris got so liquored last night he attacked that unsuspecting fellow in the soft hat and started man humping him on the ground.
by Bellinger November 13, 2006
first you must do the batman noise nahnahnahnah then while dry humping the person without touching them works best with people with a big butt then after doing all this you yell hump man
it was funny when jordan got behind arp and then did hump man to her turned around and then he did it to shana!
by him 13231231 November 25, 2007