Auto-cock-blocker

1. A straight female that has something about her that automatically prevents her from getting sex.

2. A straight female that always says or does something stupid that prevents her from getting sex.

1. Stacy has a mustache thicker than her boyfriend's. She's not gonna get laid; that's a turnoff. She's an auto-cock-blocker.

OR

2. Tracy is so pretty, but she's weird! She says random stuff like "my hamster talks to me at night." When boys hear that, they freak out. She's an auto-cock-blocker.

by PrincessR December 8, 2009