
...by excluding me from the set of ADULT
males just... Oh, I'm too tired to do this.
The Big Bang Theory Season 2, Episode 3

Uh, well,
as a responsible ADULT,
The Big Bang Theory Season 11, Episode 9

I'm an ADULT.
I think I can handle it.
The Big Bang Theory Season 12, Episode 6

Leonard, I'm an ADULT,
I know how to conduct myself...
The Big Bang Theory Season 8, Episode 23

...ADULT extension programme
at the university.
Breaking Bad Season 3, Episode 9