K-Fed-Ex Share definition Flag Britney Spear's loser husband's future monicker(nickname). Some Guy In The Near Future:"Britney Spears dumped K-Fed. Now he's K-Fed-Ex." K-Fed-Ex by Mona Lott December 28, 2005 0 0 Get merch Get the K-Fed-Ex mug. Buy Now — $32.95 See more merch