Female equivalent of blue balls. Also incorrectly called blue ovaries. When you're fooling around with someone and you want to go farther and they don't...making your crotch/vag/groin ache so badly you can hardly stand it.
I went over to Steve's last night and we made out for 2 hours. I had to leave when he wasn't giving it up and now I have blue walls so bad I can barely sit down.