
Well, I dropped your CLASS,
so I hope you're happy.
The Big Bang Theory Season 8, Episode 2

Am I allowed to ask
how the CLASS is going?
The Big Bang Theory Season 6, Episode 6

This is why I didn't wanna tell you
I was taking a CLASS.
The Big Bang Theory Season 6, Episode 6

...and everyone already has a partner
and I'll probably end up failing the CLASS.
The Big Bang Theory Season 6, Episode 8

My project for his CLASS...
Breaking Bad Season 3, Episode 9