poppycock n. + Add to list US //ˈpɑpiˌkɔk// UK //pˈɒpɪkˌɒk// pop·py·cock Informal SynonymsEtymology Synonyms hooeystuffOriginDUMpappe→NLDpappekak→ENpoppycock Borrowed from Dutch pappekak, from Middle Dutch pappe (“soft food”) + kak (“dung, excrement”).