
And what do you mean,
"MEDIOCRE stock"?
The Big Bang Theory Season 1, Episode 15

I'm taking a sabbatical because
I won't kowtow to MEDIOCRE minds.
The Big Bang Theory Season 1, Episode 4

...an improvement
on the existing MEDIOCRE stock.
The Big Bang Theory Season 1, Episode 15

(STAMMERING)
But he's a MEDIOCRE academic.
The Big Bang Theory Season 10, Episode 1

Mediocre actress,
great drug pusher.
The Big Bang Theory Season 12, Episode 17