
You have a SARCASM sign?
The Big Bang Theory Season 1, Episode 2

Sarcasm?
The Big Bang Theory Season 5, Episode 13

You know, understanding SARCASM.
Feigning interest in others.
The Big Bang Theory Season 6, Episode 8

Sarcasm?
The Big Bang Theory Season 5, Episode 16

Was that SARCASM?
The Big Bang Theory Season 2, Episode 14