G-Man (slang) the Movie of the same name. G-Man (slang) G-Man (short for "Government Man") is an American slang term for special agents of the United States Government. It is specifically used as a term for a Federal Bureau of Investigation (FBI) agent. "G-Man" is also a term used for members of G Division, essentially a British anti-rebel police unit operating out of Dublin Castle prior to Irish Independence in 1922. Colonel Ned Broy uses the term in his official testimony for the Irish Army's Bureau of Military History in their archive of the Easter Rising (1916) and the Irish War of
G-Man (Half-Life) she was doing. He also hints at having additional, unseen powers in "Half-Life 2: Episode Two". G-Man expresses regret at not being able to do more than keeping an eye on Gordon Freeman, claiming his employers have given him some "restrictions". GameDaily listed the G-Man as number 5 of the top 25 evil video game masterminds of all time. The G-Man is famous in the "Garry's Mod" community for his numerous humorous poses, exaggerated facial expressions and/or as a running joke in many videos, relayed by the "YTMND" community. He was placed as the fourth "biggest freak" on PlayStation's games