
Forgive me, Penny, but that would be
the very DEFINITION of a frivolous lawsuit.
The Big Bang Theory Season 2, Episode 14

It's interesting but isn't ventriloquism
by DEFINITION a solo activity?
The Big Bang Theory Season 2, Episode 13

That is not the DEFINITION of professional.
The Big Bang Theory Season 2, Episode 14

That is the DEFINITION of conspiracy.
Game of Thrones Season 7, Episode 7

Well, apparently these people and I
differ greatly on the DEFINITION of "party."
The Big Bang Theory Season 3, Episode 12