Synonymn for slut. One whom you would imagine to be containing enough semen within various orifices of their body to fill a receptacle of some kind, such as a. English. Etymology. cum + bucket. Noun. cumbucket (plural cumbuckets). (slang, vulgar) A low, vile person. quotations ▽. , Nicholson Baker English · Noun. Buy Fetish Fantasy Extreme- Cum Bucket on ifkrattvikfotboll.se ✓ FREE SHIPPING on qualified orders.