G-MAN Meaning of G-MAN in English transcription, транскрипция: [ ˈdʒi:mæn ]n. (pl. G-men) 1 US colloq. a federal criminal-investigation officer. 2 Ir. a political detective. [Government + MAN] English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012