What is the meaning of Chato?

flat

pug-nosed

low cup for drinking wine

liquid contained in said cup

vocative singular of chata

flat

boring

annoying

shameful

disappointing

bore (a boring, uninteresting person)

an annoying person

pubic louse

flat

pug-nosed

annoyed, fed up, sick and tired

kiddo, little one, youngster

(of a person) short

Aspirate mutation of cato.

Source: wiktionary.org