Green’s Dictionary of Slang

blunt n.3

[note the cigar can be of any brand, and can contain crack cocaine as well as marijuana; one version of the blunt is also sealed with a layer of honey]
[1970s+] (orig. US drugs)

1. any drug available in a blunt-ended capsule.

2. (also Philly blunt) a marijuana cigarette made of buds rolled in a tobacco leaf, taken from the wrapper of a Phillies Blunt cigar; thus the cigar itself; latterly used for any marijuana-based cigarette.

3. (also b) marijuana.