noun, masculine/ˈkat͡ʃo/plural: cachos
piece; horn; shit, lemon, bomb (defective, inadequate or useless item or person); nuisance, some annoying task or work
Synonyms: pedazo, trozo, cuerno, maula, rollo
Probably from a Vulgar Latin *cacclus < *cacculus, from Latin cāccabus (“pot”), see also Galician cacho (“broken container, broken piece of a container”) and Portuguese caco (“piece of pottery”). Compare also Italian cacchio.