noun
stimulant drug; speed; uppers
Slang term for stimulant drugs, especially methamphetamine. Used in underworld or casual contexts; not a neutral medical term.
警察は彼がシャブを所持しているのを見つけた。
The police found him in possession of speed.
あの界隈ではシャブが簡単に手に入るらしい。
I hear that in that circle, you can easily get your hands on stimulants.