Lower than a snake's belly

Meaning

Describes someone or something that is morally reprehensible, despicable, or at a very low point. It is a strong way to characterize poor behavior.

Harsh, judgmental

Used in a sentence

• Cheating in a game of checkers is lower than a snake's belly.
• That guy is lower than a snake's belly for lying to his own family.
• I think his reputation is currently lower than a snake's belly.