Reporter is a dumbass.
Flanker (Z or FL): A receiver lining up behind the line of scrimmage. Frequently the team's featured receiver, the flanker uses the initial buffer between himself and a defender to avoid jamming, legal contact within five yards of the line of scrimmage. The flanker is generally on the same side of the formation as a tight end. As with the split end, this receiver is the farthest player from the center on his side of the field. The flanker is probably lined up just like a split end except that he is just behind the line of scrimmage, being in the backfield and not on the line.