Vocals used by death metal/ hardcore metal vocalists. It started being called this because the voice sounded like the cookie monster. In album reviews people will often cite the cookie monster growl. Also see Bree for another example of a death metal vocal term.
When your stomach growls but you have no correlating sensation of gastro-intestinal activity leading you to believe it was someone else's tummy groaning.
The sound you make after you take a hit off da blunt. Much like a growling half cough, it usually strains the throat, and causes a small amount of irritation. Results may vary due to size of hit, what the blunt is made up of, and how long you have been getting blunt growls after mega hits.