This would be
a MASSIVE undertaking...
The Big Bang Theory Season 3, Episode 10
It's not MASSIVE.
The Big Bang Theory Season 11, Episode 15
then a super MASSIVE
black hole could work.
The Big Bang Theory Season 9, Episode 14
It's not MASSIVE.
The Big Bang Theory Season 11, Episode 15
You come face to face
with a MASSIVE monster
The Big Bang Theory Season 12, Episode 16