The word shit can be used as a noun, a verb, an adjective, an adverb, and an interjection. The word shit is the Swiss Army knife of the English language. It can be used in any context, in any situation, by any person.
noun: “I don’t give a shit.”; “Your movie is a piece of shit.”; “She beat the shit out of that guy.”
verb: “I am going to shit.”; “Don’t shit on my parade.”
adjective: “He is a shitty friend.”; “What a shit day!”
adverb: “My dad shittily mowed the lawn since he was still hungover.”; “This is a shittily written article on whale hunting.”
interjection: in response to stubbing your toe –“Shit!”; in response to hearing a bold face lie from a politician –“Bull shit!”
Out of the eight parts of speech (pronoun, conjunction, preposition were the three I didn’t use), the word shit can be used at least five different ways.