
Uh, RASH. That's a bad RASH.
The Big Bang Theory Season 4, Episode 6

before making any RASH...
The Big Bang Theory Season 7, Episode 13

And I told you
I get diaper RASH!
The Big Bang Theory Season 7, Episode 14

Whatever you do, just don't
make any RASH decisions.
The Big Bang Theory Season 7, Episode 24

Uh, RASH. That's a bad RASH.
The Big Bang Theory Season 4, Episode 6