Top Definition
A woman who wears full coverage panties, i.e. briefs or granny panties. Fullbacks generally have blatantly visible panty lines.

Fullback can also be used to refer to large panties.
Check out Danielle's panty lines! She's a fullback.

Robin traded in her fullbacks for thongs.

by 0070180 August 13, 2007
lead blocker; the ugliest girl in a group of girls at the club. It's her job to make sure no one in the club gets any play from the girls in the group.
Yo man, distract the fullback while I holla at her friend.
by O.S.C.A.R. January 24, 2007
A term used to describe any type of Women's underwear that fully cover the butt.

Synonym "granny panties"
I can always tell it's time to do laundry when all I have left to wear are my full-backs
by Coolcandy September 11, 2014
A "code" slang for "fuck bitches." Created and started in Yorkville, IL.
Person 1: Man, this girl has got me trippin.'
Person 2: Don't worry about it, fullbacks!
by Quadpod May 04, 2006
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