Top Definition
Engaging in consensually aggressive, uninhibited, or particularly enthusiastic intercourse. May also denote Sado-masochism or the Cowboy position.
"we were bucking like wild beasts all night."
by FUVM,The,FCC December 18, 2007

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Bucking-Kinda the same as curving someone, making someone else feel scared, or not wanting to do something G, or cool. Used in the south, watch out a lot of friends will say your bucking just because you don't want to do something they want!!!
boy 1: I don't want to fight you

boy 2: oh so you bucking

You would probably get respect if you didn't buck from every call out.

Whats sup, Im not bucking
by Ace man 101 May 27, 2011

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Throwing up after consuming alcohol.
"I was trying to clean up her vomit while she was bucking in the toilet"
by Cratina February 17, 2006

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to snort a line of cocaine or any substance up your nose.

"we were bucking coke last night"
"want to buck some K?"
"did you buck?"
by BARBER MAN October 25, 2006

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to snort a line of cocaine or any substance up your nose.

"we were bucking coke last night"
"want to buck some K?"
"did you buck?"
by BARBER MAN October 25, 2006

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Rogering someone that the Bucker considers to be a complete and utter bastard, usually anally and with an inanimate - or animate if the occasion calls for it - object.
Man 1: I've just had a thought. Let's buck Matthew Caris with a jar of marmalade.
Man 2: Yes, his crack is big enough! Let's go!
*Men walk to the Marmalade Shop*
by a psuedonym June 24, 2004

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bucking = back fucking

basically, a guy rubs his hard cock on the groove on the back of a girl, right above her ass until he cums all over her back.
yeah man, me and julia were bucking last night. i jacked off my huge cock between that little groove in her back and came all over her back and her hott ass.
by jamesfuckerr December 10, 2007

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