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21.
To attack someone or something by wildly charging them full force with no sort of tact or skill other than one's own momentum and possibly the backs and sides of their fists as they randomly flail them out of rage, but certainly consisting of no precisely swung blows. Also bum rush.
"Dude, Charlie just bumrushed me!"
by saggy sammy July 10, 2008
 
1.
To run full speed into somebody and body slam them into a brick wall, chain link fence, or similar immovable object.
"Dude, I just got bum rushed on the corner of E.9th and Euclid Avenue."
by Ron W February 19, 2007
 
2.
The act of attacking someone or something (usually by a group)with the reckless abandon and fervor of one who has nothing to loose.
The children bum rushed the home baked cookies as they were brought out.
by Paul Organic September 16, 2003
 
3.
To run full speed into somebody and body slam them into a brick wall, chain link fence, or similar immovable object.
"Dude, I just got bum rushed on the corner of E.9th and Euclid Avenue."
by Ron W February 17, 2007
 
4.
The sudden act of anal penetration without the victim's awareness.
Jimmy got bumrushed at the club last night.
by CaptainCanadia February 13, 2011
 
5.
The act of anal sex between two males, by the person standing firmly behind. While it can theoretically also refer to heterosexual anal sex, bumrush is exclusively used in practice to refer to anal sex between two men. More specifically the tops '''does''' the bumrushing, while the bottoms '''gets''' bumrushed.
Gay guy #1: Have you seen that new handegg player ?

Gay guy #2:Yeah, he is soo hot. I'd love to bumrush him.
by Mousebender December 18, 2011
 
6.
1) (n) Crash the gates of a show with a pack of people, in the hope to get in without having to pay. "Yo! Bumrush the show" -- Public Enemy. (Yo! Bumrush the show) 1987.
2) (v) To get beaten up by a large, angry group of people. Literally to get rushed by bums or lowlifes.
by VAKI5 September 14, 2003
 
7.
To be making sex in the vagina and accidentally slip out and thrust into said bum
Me: Dude, I was fucking this chick last night and I bumrushed her.

You: Oh, shit dude LOL

Me: No, no shit this time.
by ManDannel March 08, 2010