slang term for police.
Hide the pot! the Popos are coming!
Pimped Out Piece of Shit(Popos)
When someone buys a beater car and attempts to make it look pimped out by adding spoiler, rims, etc. Even with all money pumped into it, the car still looks like shit.
I was going to the bar, when this scrub drove by trying to look all bad ass in his popos.