What is a 'slot back' in football?

Answer 1

A slot back is a receiver or running back that lines up between the offensive tackle on the end of the line and a wide receiver on the same end of the line. That area between the tackle and receiver is called the 'slot', so the player that lines up in that area is called the 'slot back'. The term slot back does not refer to a specific player on every play, like a halfback or fullback, but to a player that lines up in a specific area on a specific play. There may be a slot back on one play and no slot back on another. A slotback is a position in football (hopefully you knew that), generally the slotback lines up 1 yards to the right or left of the end of the line (but still on the line), they are used mainly to block outside linebackers, on certain plays they are used as recievers though. -----
The 'slot' is the area between the last offensive lineman on the line of scrimmage and the wide receiver on that side. Anyone who lines up between those two players is called a slotback.