Green’s Dictionary of Slang

bits n.2

(UK Black) small measures of a given drug.

67 ‘Hookahs’ 🎵 I can move grub on the endz, I can move grub in twiz / I can move amm in draws, I can move amm in bits.
1011 ‘No Hook’ 🎵 I just put 4 z’s in pebs, plus I get bits for man if they need it.