1. An individual, usually female, whom is considered and utilized for ejaculating in. Men have been known to get filled with cum as well, take Mephistopheles Foetusgrubber for instance...he is a cumdumpster and an advocate for cocks and cumloads...
2. A sperm bank comprised of a lucky individual.
3. A bimbo, a trollop, a slut, Me in a "nutshell."
4. Lastly, cumdumpster can be defined by many
Bukkake actresses.
Oh my
god, I cant believe I just got cream
pie gangbanged by like-50 guys;
wow what a cumdumpster I have become!!!