
He thinks it's a CLUE
to a scavenger hunt.
The Big Bang Theory Season 12, Episode 2

- What's that about?
- Not a CLUE.
The Big Bang Theory Season 2, Episode 15

- No.
- Not a CLUE.
The Big Bang Theory Season 4, Episode 19

Maybe the spot's
the CLUE.
The Big Bang Theory Season 7, Episode 3

So, the part where he got stood up
didn't CLUE you in?
The Big Bang Theory Season 10, Episode 16