
What exactly does that EXPRESSION mean,
"friends with benefits"?
The Big Bang Theory Season 2, Episode 21

This calls for an
EXPRESSION of gratitude.
The Big Bang Theory Season 5, Episode 20

Ahh. Yes, she's pushy and, yes,
he's whipped, but that's not the EXPRESSION.
The Big Bang Theory Season 3, Episode 3

Funny EXPRESSION, sleep tight. Ha-ha. Ha.
The Big Bang Theory Season 1, Episode 7

but I think I'm just an EXPRESSION of...
The Big Bang Theory Season 9, Episode 11