when a group of people (esp. drummers) get together and practice their chops. other instruments can accompany them, but its mainly drum solos, and grooves. extremely fun if your with a great group of drummers.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)