this next part may contain
some ADULT language.
The Big Bang Theory Season 10, Episode 11
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
You get why I've been alone
most of my ADULT life.
The Big Bang Theory Season 8, Episode 4