Whenever I see a bucket of DIRTY water,
I still hear "Lady in Red."
The Big Bang Theory Season 8, Episode 8
Just realized I've never
actually seen your hands DIRTY.
The Big Bang Theory Season 12, Episode 21
Okay, that's just
the plot for Dirty Dancing.
The Big Bang Theory Season 7, Episode 6
I... I just... I tried being good at sports,
but I hated getting DIRTY.
The Big Bang Theory Season 2, Episode 15
You're a-a DIRTY...
The Big Bang Theory Season 5, Episode 2