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

You may have gone to Cambridge,
but I am an honorary GRADUATE...
The Big Bang Theory Season 4, Episode 21

...and all they had left
was "Sexy Graduate," so they...
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

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