1. n. a mass of lies and deception worth no more than dung. (Usually objectionable.) That’s nothing but a crock of shit! I don’t believe a word of it.
2. n. a person who tells lies. (Rude and derogatory.) He’s just a crock of shit. He never tells the truth.
3. n. a braggart. (Rude and derogatory.) He’s such a crock. He makes everything he has done sound ten times better than it really is.