to have a COSTUME meeting.
The Big Bang Theory Season 12, Episode 24
So, did you see
Howard's COSTUME?
The Big Bang Theory Season 12, Episode 6
What happens in COSTUME at Comic-Con
stays at Comic-Con.
The Big Bang Theory Season 2, Episode 2
Except the Halloween COSTUME
The Big Bang Theory Season 7, Episode 2
without the rest of the COSTUME.
The Big Bang Theory Season 5, Episode 19