When someone is so good at sex that they seem to control when you cum. Much like being a water, fire, earth, or air bender in Avatar. Can be male or female.
Damn she really is a cumbender I came before I even knew what happened.
When a Male explodes his semen all over the floor and the partner lays on the floor and makes angels having a similar effect as a snow angel but with semen.
Tootie: Sam, I would love it if you ejaculated all over my floor