Uh, no. We lock that door,
lower our UNDERPANTS a little,
The Big Bang Theory Season 10, Episode 8
It's where your UNDERPANTS live.
The Big Bang Theory Season 9, Episode 10
because you no longer
wear UNDERPANTS.
The Big Bang Theory Season 5, Episode 4
"Leonard will restrict video gaming
in UNDERPANTS to hours Penny is not home.
The Big Bang Theory Season 10, Episode 13
let all the boys see
my UNDERPANTS.
The Big Bang Theory Season 5, Episode 1