Either chronic or situational, caveman syndrome causes the victim to have the need to shit almost continuously. While diarrhea is more commonly an immediate and short-lived (for the lucky ones) experience, caveman can be describe properly as multiple fecal instances spread more or less evenly throughout the day. Caveman syndrome is predominantly exuded by those with a fast metabolism.
Guy 1: Damn, I've had to shit like 10 times today, but none have been satisfying!

Guy 2: Caveman syndrome for sure.

Guy 1: I gotta shit again.
by Captain Slippyfist October 19, 2010
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