pisshead in English dictionary pisshead Meanings and definitions of "pisshead" (derogatory, slang) A person who regularly overindulges in alcoholic drink. noun (Britain, Australia, derogatory, slang) A person who regularly overindulges in alcoholic drink. more Grammar and declension of pisshead pisshead ( plural pissheads) pisshead (plural pissheads) more Sample sentences with "pisshead" Declension Stem Try again Available translations Chinese Cornish Czech Finnish French Galatac German Greek Italian Polish Portuguese Authors