I'm an ADULT.
I think I can handle it.
The Big Bang Theory Season 12, Episode 6
Really? "The only ADULT"?
The Big Bang Theory Season 9, Episode 21
Yeah, you would think the "only ADULT"
The Big Bang Theory Season 9, Episode 21
Leonard, I'm an ADULT,
I know how to conduct myself...
The Big Bang Theory Season 8, Episode 23
Uh, well,
as a responsible ADULT,
The Big Bang Theory Season 11, Episode 9