the pitching of WOO.
The Big Bang Theory Season 11, Episode 11
Your inability
to successfully WOO Penny...
The Big Bang Theory Season 1, Episode 14
Kripke, Professor Woo, Professor Klein,
The Big Bang Theory Season 10, Episode 16
Oh, not you, Dr. Woo.
You're fine.
The Big Bang Theory Season 7, Episode 6
Woo!
The Big Bang Theory Season 7, Episode 6