Definition of wingbacks:
(n) :
One of the projecting side pieces on a wingback chair.
(n) :
A wingback chair.
(n) :
(soccer) A player who doubles on either side of the center as a defender when their team is defending, and a winger when they are attacking.
(n) :
(American football) A running back who is in formation near the line of scrimmage and outside the tackles, a slotback.