
- That's actually my NAPKIN.
- Oh, this is a nightmare.
The Big Bang Theory Season 4, Episode 23

If you like, starting tomorrow
I'll add a guest NAPKIN...
The Big Bang Theory Season 3, Episode 5

Ooh, are-are you gonna
write it on a NAPKIN
The Big Bang Theory Season 12, Episode 17

Oh, a NAPKIN.
The Big Bang Theory Season 2, Episode 11

Good luck. That's the face NAPKIN.
The Big Bang Theory Season 3, Episode 5