Entry 2 senses · 2 variants Webster, 1913 ca-ca · IPA n. v. 01 n. Feces; excrement; -- used in talking with very young children. 1. Feces; excrement; -- used in talking with very young children.[baby talk] 02 v. to have a bowel movement. 1. to have a bowel movement.[baby talk] Syn. defecate, shit, take a shit, take a crap, crap, make.