"Darn tooting, I do.
The Big Bang Theory Season 3, Episode 16
Darn it.
The Big Bang Theory Season 12, Episode 8
Darn it, I do like
objects that hover.
The Big Bang Theory Season 11, Episode 15
Oh, DARN, that's wrong!
The Big Bang Theory Season 4, Episode 5
You're DARN right it's fair play,
you selfish jerk!
The Big Bang Theory Season 9, Episode 23