talk through one's hat vs bullshit

talk through one's hat is not a noun while bullshit is a noun.

Word	Noun	Adjective	Verb	Adverb
talk through one's hat	No	No	Yes	No
bullshit	Yes	No	Yes	No

As verbs, talk through one's hat and bullshit are synonyms defined as:

talk through one's hat and bullshit: speak insincerely or without regard for facts or truths

Other synonyms of talk through one's hat include bull, fake.

talk through one's hat (noun)	bullshit (noun)
	Obscene word for unacceptable behavior

talk through one's hat (verb)	bullshit (verb)
speak insincerely or without regard for facts or truths	speak insincerely or without regard for facts or truths