An offensive, detestable, repellent person, especially one who does unscrupulous or immoral things. My last boss was a total slimebag, making all sorts of shady deals to skim a bit of extra profit for herself. That slime bag defrauded his clients for millions of dollars. They ought to lock him up and throw away the key.
slime bagand slime bucket and slimebag and slimeball
n. a despicable person, usually a male. (see also slime.) Gee, a slime bag like that in the same room with me! Yuck!