jam (origin unknown) – 1. to drive or wedge forcibly into a tight position. 2. to fill often to excess. 3. to make unintelligible by sending out interfering messages or signals. 4. to force one’s way into a restricted space. 5. to take part in a musical jam session.

Indy

The Fatback Band (later, simply Fatback) is an American funk and disco band. Most popular in the 1970s and 1980s, The Fatback Band is most known for their Top Ten R&B hits, "(Do The) Spanish Hustle", "I Like Girls", "Gotta Get My Hands on Some (Money)", and "Backstrokin'". Their 1979 single "King Tim III (Personality Jock)" is considered by many to be the first rap single. "King Tim III" is the first recorded Rap song and was performed by Fatback band at the Capital center with King Tim III in Landover ,Md in the 80's … more less