Very MATURE.
You're lucky I'm out of Silly String.
The Big Bang Theory Season 6, Episode 22
That would be
the MATURE thing to do.
The Big Bang Theory Season 11, Episode 15
Yes, and I think it's pretty
MATURE of me to admit it.
The Big Bang Theory Season 11, Episode 11
I mean, we spent the whole
night trying to be MATURE,
The Big Bang Theory Season 7, Episode 14