tell on vs shit

tell on is not a noun while shit is a noun.

Word	Noun	Adjective	Verb	Adverb
tell on	No	No	Yes	No
shit	Yes	No	Yes	No

As verbs, tell on and shit are synonyms defined as:

Other synonyms of tell on include betray, denounce, give away, grass, rat, shop, snitch, stag.

tell on (noun)	shit (noun)
	something of little value
	Obscene word for unacceptable behavior
	insulting terms of address for people who are stupid or irritating or ridiculous
	a coarse term for defecation
	a small worthless amount
	obscene terms for feces

tell on (verb)	shit (verb)
produce an effect or strain on somebody	have a bowel movement
give away information about somebody	give away information about somebody