split end

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Football A pass receiver who lines up apart from the rest of the formation.
• noun The end of a hair that has split into strands.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A hair which has split at the end, usually from dryness or innutrition. (Usually in plural)
• noun American football The position which lines up wide and on the offensive line of scrimmage whose primary job is to serve as a receiver
• noun American football A player playing the position of split end

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun (football) an offensive end who lines up at a distance from the other linemen