
Well, then, BUCKLE up.
You're in for a cranky night.
The Big Bang Theory Season 8, Episode 20

All right. Let's BUCKLE down and work.
The Big Bang Theory Season 3, Episode 4

the National Belt Buckle Collectors
meet-and-greet.
The Big Bang Theory Season 10, Episode 19

Ooh, look, a new Batman belt BUCKLE.
The Big Bang Theory Season 2, Episode 20

It's a lightsaber
belt BUCKLE.
The Big Bang Theory Season 7, Episode 7