Dub

Dub is slang for a $20 portion of weed — historically a bag, today often a pre-roll, gummy, or vape pull at that price point. Older usage referred to a $20 bag of roughly 1.5-2g; modern usage in regulated markets is closer to a single 1g pre-roll or 20mg edible.

Example: Just grab a dub, we don't need a whole eighth.

Etymology: From '$20' shorthand; long used in hip-hop and street-level cannabis economies.