Definition of mock-man in US English:

mock-man

noun

rare
  • 1A person or thing resembling a man but without the qualities of a man; (contemptuous) a man considered unworthy of being called a man.

  • 2An ape; specifically a chimpanzee.

Origin

Early 17th century; earliest use found in John Fletcher (1579–1625), playwright. From mock + man.