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- not give a monkey's
not give a monkey's
not give a monkey's
To be disinterested or indifferent. This version is truncated to avoid the expletives that often follow "monkey's." If you think I care what he says, you're wrong—I don't give a monkey's! I know you don't give a monkey's about your room being clean, but can you at least pick the clothes up off the floor once in a while?