
and that stands for
"MATURE audiences," buster.
The Big Bang Theory Season 9, Episode 21

That's very MATURE of you.
The Big Bang Theory Season 9, Episode 13

Very MATURE.
You're lucky I'm out of Silly String.
The Big Bang Theory Season 6, Episode 22

...now you're more MATURE.
The Big Bang Theory Season 8, Episode 20

I mean, we spent the whole
night trying to be MATURE,
The Big Bang Theory Season 7, Episode 14