from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Slang A despicable or disgusting person.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A person who is slimy (in the figurative sense of underhanded, sneaky).
slime + -ball (probably as in oddball).(American Heritage® Dictionary of the English Language, Fourth Edition)
slime + ball (Wiktionary)