Those certain females who have such a nice pair of tits on them that, regardless of what she is wearing, it will cause an onlooking male to develop an instant erection.
Oops, I need to excuse myself for a few minutes because that cheerleader has an outstanding erector set on her.
another term used to describe the scale by which hotwomen are measured. The scale ranges from 1 to 10 and women are given higher numbers depending on thier ability to induce an erectile response in males merely by being in the room.
Bro 1: "dude check out that chick, she scores at least a nine on the erector scale!"