noun, masculine/ka.ka/plural: cacas
poo, poop (childish word for excrement, fecal matter, dung, crap); ellipsis of caca ravet (a species of tree)
“J’ai marché dans la caca de vache.” — I stepped in cow dung.
Synonyms: caca, crotte, fèces, marde, matière fécale, merde, selles
From Latin cacāre (“to defecate, to shit”).