icemanEnglishOxford Dictionary of Englishiceman /ˈʌɪsman / ▸ noun (plural icemen) 1 informal a man who remains very calm when under pressure: Dan has ice-cool nerves, and his ability to be that iceman for his team has served his country well. 2 historical mainly North American English a man who sold or delivered ice: she remembers the iceman delivering blocks to the icebox.