Professor Woo.
The Big Bang Theory Season 6, Episode 20
Your inability
to successfully WOO Penny...
The Big Bang Theory Season 1, Episode 14
the pitching of WOO.
The Big Bang Theory Season 11, Episode 11
Did you have to WOO me?
The Big Bang Theory Season 4, Episode 9
Kripke, Professor Woo, Professor Klein,
The Big Bang Theory Season 10, Episode 16