
I need a change of UNDERWEAR
just thinking about that.
The Big Bang Theory Season 12, Episode 15

And is wearing the sexy black
UNDERWEAR you bought.
The Big Bang Theory Season 6, Episode 5

Go ahead, throw my UNDERWEAR
out the window, same thing's gonna happen.
The Big Bang Theory Season 10, Episode 19

...but turned out to be
Howard's mom's UNDERWEAR.
The Big Bang Theory Season 6, Episode 6

I should probably put on
clean UNDERWEAR.
The Big Bang Theory Season 7, Episode 14