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.