Woo!
The Big Bang Theory Season 7, Episode 6
...that neither of you
would attempt to WOO her.
The Big Bang Theory Season 4, Episode 6
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