
Not bad.
I myself started GRADUATE school at 14.
The Big Bang Theory Season 1, Episode 12

Graduate schools should do a better job
of screening those people out.
The Big Bang Theory Season 2, Episode 2

Don't worry. I've kept them all
at a high-school GRADUATE reading level.
The Big Bang Theory Season 2, Episode 13

B, I wanted to look
like a sexy GRADUATE for you.
The Big Bang Theory Season 8, Episode 22

Isn't there a policy
against dating GRADUATE students?
The Big Bang Theory Season 2, Episode 6