When you sit down in a car and the seat belt buckle jams up your ass.
Holy shit John just got Buckle fucked so hard he's crying.
by Mr. D Spiers May 30, 2014
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To fuck someone but put a belt around the vagina therefore locking the dick and vagina in place.
Adam and sally buckle fucked and needed to get surgically separated from each other by doctor bend ova.
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when driving with hangover buckled in and feeling fucked buckle-fucked.
i was so buckle fucked coming home this morning i crashed into a tree.
by ranga hawk June 9, 2009
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adjective - To be incapacitated due to sexual misadventure/ shenanigans.
We went for, like, 8 hours straight last night & now I'm fuck-buckled
by cheekychick88 April 20, 2011
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This is when a girl is getting fucked up the ass so hard that both her and the person fucking her knees buckle from the forces of fucking and getting fucked. Best observed in any porno where anal poundings are involved.
Dude me and my girl were fucking, it was Knee Buckling Butt Fucking night, she was so tired after that she fell asleep with my cock in her ass, what a night!

Knee Buckling Ass Fucking is the way to go
by Overloard October 9, 2010
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An exclamation mark you say/shout when you fuck something up. Also could be used to throw shade at somebody named buckles.
Bob: Hey Juanietto, you got that tax return done for the upcoming fiscal year?

Juanietto: Oh fuck buckles! No, that completely left my mind. Let me get to that after I complete our annual analytics finished by this afternoon.
by FUCKBUCKLES January 31, 2020
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