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

Yours is the First Squad, Sixth Company
of BRIPAC.
Money Heist Season 3, Episode 2

You’re going to the slaughterhouse,
there’s a SQUAD waiting for you
Money Heist Season 1, Episode 1

I urgently request access confirmation
for the BRIPAC SQUAD
Money Heist Season 3, Episode 2

I'll send Hal with a SQUAD
of guardsmen to escort you.
Game of Thrones Season 1, Episode 2