Penny is wearing the worst
Catwoman COSTUME I've ever seen.
The Big Bang Theory Season 1, Episode 6
Howard thought it'd be funny
to tell me it was a COSTUME party.
The Big Bang Theory Season 9, Episode 21
to wear the French
maid's COSTUME.
The Big Bang Theory Season 5, Episode 21
And if I have to watch him squeeze into
an Ewok COSTUME, so be it.
The Big Bang Theory Season 10, Episode 17
There are so few places
I can wear my jester COSTUME.
The Big Bang Theory Season 2, Episode 2