Fullback
WordNet
noun
(1) The position of a back on a football team
(2) (football) the running back who plays the fullback position on the offensive team
verb
(3) Play the fullback
WiktionaryText
Noun
- An offensive back whose primary jobs are to block in advance of the halfback on running plays and for the quarterback on passing plays.
- A defensive player who assists the goalie in preventing the opposing team from scoring.