I'll put that money into a CD,
wait for that CD to MATURE,
The Big Bang Theory Season 11, Episode 9
That's very MATURE of you.
The Big Bang Theory Season 9, Episode 13
how emotionally MATURE you are,
didn't you?
The Big Bang Theory Season 11, Episode 15
So you want to seem
MATURE and confident.
The Big Bang Theory Season 12, Episode 12