
- Chat her up.
- What?
The Big Bang Theory Season 3, Episode 12

...in a debate in the DC Comics Batman
CHAT room, and I need your help.
The Big Bang Theory Season 2, Episode 20

and a failed video CHAT.
I win!
The Big Bang Theory Season 5, Episode 20

Chat? We don't CHAT,
at least not off-line.
The Big Bang Theory Season 1, Episode 1

Yeah, if we CHAT...
The Big Bang Theory Season 4, Episode 2