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.
to crack under pressure
this nigga buckled at the foul line wit 2 seconds left and airballed it
The act of releasing vile waste.
Be careful, Kyle just Buckled in there.
a really expensive store
hey how much are those jeans?
holy crap! how much is that shirt?
Stating someone is smash
Mike: Did you see Lexi tonight?
Justin: The one in the black top?
Mike: Yeah I'd buckle.
To get down to business, to study. Usually used by students who have felt their academic performance to be sub-par.
"I've got to buckle, Iana. Next semester I've got eight classes - all in calculus."
"To hell with buckling, I need to party!"
To trip over by accident i.e over a curb.
"Oh, he buckled and cracked his neck"
A wife that makes you buckle down.
That wife of mine (Buckles) always naggin me talkin bout I need to buckle down.