"Leonard will restrict video gaming
in UNDERPANTS to hours Penny is not home.
The Big Bang Theory Season 10, Episode 13
It's where your UNDERPANTS live.
The Big Bang Theory Season 9, Episode 10
I own nine pairs
of UNDERPANTS.
The Big Bang Theory Season 7, Episode 1
Uh, no. We lock that door,
lower our UNDERPANTS a little,
The Big Bang Theory Season 10, Episode 8
Instead of UNDERPANTS, I covered
my crotch with potato salad. Thoughts?
The Big Bang Theory Season 3, Episode 15