Crossword clues for the word: MACHINEGUNKELLY The word MACHINEGUNKELLY has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for MACHINEGUNKELLY Showing 1 to 7 of 7 results Clue(s) *Nickname of gangster George K. Barnes "Gangster said to have coined the term ""G-man""" Gangster born George Gangster who did time at Alcatraz Kidnapper of an oil millionaire, July 1933 Nickname of a Prohibition era criminal Notorious gangster of the Prohibition era