
It said right there on the invitation,
"Buckle up for fun!"
The Big Bang Theory Season 10, Episode 19

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

It's a light saber
belt BUCKLE.
The Big Bang Theory Season 12, Episode 24

Says the man with a giant
belt BUCKLE and a dickey.
The Big Bang Theory Season 12, Episode 6

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