[dmbche]

oddly this "caca" felt more visceral to me that most "poop"'s or "shit"'s I've seen in a bit. summoned an image instantly. probably just surprise - good choice!

[zeroq]

reminds me of a blackhat presentation of a web crawler

two young gentlemen introduced it as "caca", seemingly an acronym for sth, but they just couldn't help themselves and kept chuckling for next five minutes.

[flobosg]

"Caca" is more kiki and "poop" is more bouba.

[oblio]

"Caca" means shit in a bunch of languages (at least as a term used with children, but not only, in Romanian, French, etc), that's probably the reason.