A woman that is
ugly, bitchy, harpy, shrewish, or has any other unattractive characteristic that makes her sexually undesirable to a man.
Said of a woman that temporarily kills sexual desire because of physical or
personality traits that do not a man want to have her.
Joe: "Kate is a Boner Shrinker."
Alex: "Yeah, she ain'
t very
pretty."
Joe: "Not just that, but she is a complete bitch. That is what I meant."