(noun) The small depression on a woman's lower back, that is an ideal semen deposit area following doggystyle sex. Often adorned with a trampstamp to mark the ejaculatory bulls-eye.
When Dick was fucksJane doggystyle, he likes to pull out and fill up her cumtrough.
That final piece of mental imagery which pushes one over the threshold towards a sexualclimax... pertaining to the idea of ejaculation, the cumthought is that which produces, and precedes, the cumshot.
"Yeah man, I can always rely on imagining railing my girlfriend for my cumthought. Gets me every time."
1. a mixture of a cunt and a douche; a person who is a cunt and a douche at the same time
2. an occurence when a female's cunt accidentally swallows the entire douch
1. Dude, Aaron is such a cuntdouche
2. Did you see what happened to Mona the other day? She was cleaning her self, then all of a sudden "schlup!" she gets a cuntdouche