
It stands for Perpetual Motion Squad.
The Big Bang Theory Season 1, Episode 13

The MOTION carries.
The Big Bang Theory Season 4, Episode 3

There's a MOTION on the floor,
"I'm ridiculous."
The Big Bang Theory Season 9, Episode 21

MAN:
And the MOTION, then, is seconded
by Councilor Cook. Any questions?
Breaking Bad Season 4, Episode 3

There's five no's and the--
That MOTION fails.
Breaking Bad Season 4, Episode 3