Chuco is mainly a noun but it can be a verb, adjective, pronoun, proverb. It can be used in a sentence that is pathos, ethos, or logos.
"Hey Chuco! Let's go to the bar and drink a few chucos and then smoke a chuco outside." It can also be used as a greeting. For example, if you walk into a party then everyone will be like, "CHUCO!"