A childish or informal word for feces or poop; also sometimes used to describe something of poor quality.
From Spanish/Portuguese 'caca,' which may be imitative of the sound or related to Latin 'cacare' meaning 'to defecate.' Common in Romance languages and adopted into English nursery language.
Nearly every language has a silly word for poop—Spanish has 'caca,' French has 'caca,' and they're all probably connected because kids making bathroom noises sounds kind of similar across cultures!
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