
Darn.
The Big Bang Theory Season 6, Episode 1

Hot DARN!
The Big Bang Theory Season 5, Episode 20

"pretty DARN foolish right now.
I'm talking about you,
The Big Bang Theory Season 12, Episode 23

Oh, DARN, that's wrong!
The Big Bang Theory Season 4, Episode 5

Darn it, I do like
objects that hover.
The Big Bang Theory Season 11, Episode 15