1. slang A mean or unpleasant person, especially a man. A minced oath replacing the profane phrase "son of a bitch." Julie's ex-husband was such a mean son of a biscuit, it's no wonder she divorced him. You gosh-darned son of a biscuit! I'm gonna make you pay for that!

2. slang An emphatic expression of affection or admiration for a man. That son of a biscuit really pulled through for us when we needed him! Why, you old son of a biscuit! I haven't you in a dog's age!

3. slang An inanimate object that is causing one problems or difficulty. My car broke down, and I can't figure out how to fix the son of a biscuit! A: "This stupid son of a biscuit has been giving me problems for weeks!" B: "I think it may be time to just buy a new computer, Tom."

4. slang An exclamation of anger, aggravation, pain, or shock. A: "Son of a biscuit!" B: "What's wrong?" A: "The bank just charged me $50 in withdrawal fees!" Ouch, son of a biscuit! Stubbing your toe is the absolute worst!