an ugly
chick who follows you around, speaking to and
flirting with you both blatantly and incessantly, thus
blocking your cock in the worst way possible.
douche 1 "dood, i'm never gonna get laid with this
bogey on my tail."
douche 2 "brahsef, you either gotta shake that bogey or we need to go to a
party with clear skies cause she's killing my
game by association."
disclaimer: obviously douche bags don't use such profound sentence structure or vocabulary, but you get the point.