Sid

Refers to the term "cid" which is slang for acid/lsd in a way that refers to a human name, so as not to draw suspicion.

I'm visiting my friend Sid today.

PPP

An acronym for “Please Pass the Pipe” used by suburban white male teenagers during abuse of a smoked drug, commonly weed.

Cracker 1: (hits bong), “There’s some herb left bruh”
Cracker 2: “Aight, PPP”
Cracker 1: (passes bong to Cracker 2)