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.