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To leave or give-up when losing an online game (For Eg. Counter-Strike). Can also refer to real life going home early on a night out or to give up at something.
Jesus christ i was pwning a noob and he fucking did a buckle
by BuckleZ May 31, 2007
A wife that makes you buckle down.
That wife of mine (Buckles) always naggin me talkin bout I need to buckle down.
by MACHINEGUNJACK May 18, 2011
v. in reference to who owns the pants. One may wear the pants in the relationship, but the other owns the buckle to the pants.
A.k.a. one person may be the boss, but the other one controls who gets into the pants.
1.A:I wear the pants in this relationship.
M: Yes, but I own the buckle.
A: You aren't getting into my pants anytime soon.

P:Dude, you know he wears the pants in that relationship.
F:Yeah, but she owns the buckle.
by Hippieluv February 01, 2009
To say that a food item is good or delicious, particularly one you haven't tried before.
Yo, these pocky sticks are buckle.
by D boner January 13, 2011
To fail, especially by loss of will.
"Did you ask that girl out, Jim?"
"No, she had a cock-blocking friend and I buckled."
by Knuckles April 03, 2003
A female beyond ugly
"Yo female is Buckle!!"
by LIL John aka Johnathan February 09, 2004
Is a blowjob. An act of felatio. The placement of ones penis in another human being's open mouth.
She gave me a great buckle.
She used her teeth during a buckle and now my shank won't crank.
by Racquel Darrian August 19, 2004