
Okay, the CLUE
must be in the bag.
The Big Bang Theory Season 7, Episode 3

What was your first CLUE?
The Big Bang Theory Season 1, Episode 14

now is the time
to fucking CLUE me in. OK?
Westworld Season 2, Episode 9

The sole CLUE:
"It's not what it looks like."
The Big Bang Theory Season 5, Episode 1

that might contain a CLUE.
The Big Bang Theory Season 7, Episode 18