Okay, fine. The Tar Pits. Let's go.
The Big Bang Theory Season 3, Episode 6
To the TAR pits!
The Big Bang Theory Season 7, Episode 3
I do enjoy the La Brea Tar Pits.
The Big Bang Theory Season 3, Episode 6
...and my new dandruff shampoo
doesn't smell like TAR.
The Big Bang Theory Season 6, Episode 6