Primitive psycological protection ladies often put in an attempt to ward of those they consider creeps and/or misfits. Can usually be broken down by refusing to acknowledge the actual relevance of a bitch shield, hence making the imaginary self-defense device irrelevant.

The emotional barrier a chick puts up when you hit on her. Like when she is by herslelf at the club.

bitch shield is a front a woman will do. to defend herself from getting played.

Female equivalent to a "Cock Block"