Professor Woo.
The Big Bang Theory Season 6, Episode 20
the pitching of WOO.
The Big Bang Theory Season 11, Episode 11
Oh, not you, Dr. Woo.
You're fine.
The Big Bang Theory Season 7, Episode 6
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