by polishing my BELT buckles.
The Big Bang Theory Season 5, Episode 21
It's a lightsaber
BELT buckle.
The Big Bang Theory Season 7, Episode 7
are Wolowitz's BELT buckles.
The Big Bang Theory Season 12, Episode 24
I did your laundry, I pee-pee-
proofed your BELT buckles,
The Big Bang Theory Season 5, Episode 21
Never leave a BELT on the floor.
At night, they look like snakes.
The Big Bang Theory Season 10, Episode 4