Definition of male gauge in English:

male gauge

(US male gage)

noun

rare
  • 1A projection or peg designed to fit into a notch or slot and so control the position of a mechanism.

  • 2A gauge designed to fit into an opening whose size is to be tested or measured.

Origin

Late 17th century; earliest use found in Joseph Moxon (1627–1691), printer and globe maker.