TV series example of the word

The Big Bang Theory Season 5, Episode 4
because you no longer wear underpants.

The Big Bang Theory Season 5, Episode 1
let all the boys see my underpants.

The Big Bang Theory Season 9, Episode 10
It's where your underpants live.

The Big Bang Theory Season 10, Episode 8
Uh, no. We lock that door, lower our underpants a little,

The Big Bang Theory Season 10, Episode 13
"Leonard will restrict video gaming in underpants to hours Penny is not home.