Blunt is a slang term for cannabis rolled with the tobacco-leaf "wrapper" from an inexpensive cigar also called a blunt. Blunts take their name from Phillies Blunt brand cigars, although any commonly available cigar or cigarillo can be used. Another common term for a blunt is an "El-P" or "L",  a reference to the El Producto brand. Another commonly used nickname is "Dutches" when referring to Dutch Masters.
In the tobacco industry, a blunt is defined as a cigar which is wider than a cigarillo and not quite as wide as a Corona. A cigarillo that has been split and re-rolled with marijuana is called a blunt in cannabis culture.
Due to the tobacco content in the wrapper leaf, blunts carry with them the risks of tobacco use, including addiction and cancer.
"How To Roll A Blunt" by Weedmaps TV (September 9, 2010) at YouTube:
- Blunt (cannabis cigar) at Wikipedia
- Erowid Cannabis Vault (November 10, 1993), Erowid
- Australian Government Department of Health: National Cannabis Strategy Consultation Paper (June 18, 2014), Australian Government