
I once looked in Sheldon's
UNDERWEAR drawer. He yelled at me.
The Big Bang Theory Season 6, Episode 6

...and comes into your apartment
in the morning in her UNDERWEAR?
The Big Bang Theory Season 2, Episode 10

It's also been a long time
since I bought new UNDERWEAR.
The Big Bang Theory Season 12, Episode 2

So either one of you weirdoes wanna
buy my UNDERWEAR? Only 1400 bucks.
The Big Bang Theory Season 4, Episode 2

Hidden inside our UNDERWEAR?
Money Heist Season 1, Episode 13