Definition of "Mandy"

Mandy¹

/ˈmændi/

proper noun
plural Mandys or Mandies
1. A diminutive of the female given name Amanda. Popular as a formal given name in the UK in the 1960s and 1970s.
  Quotations
  But Mother and Father and Grandpa and Grandma and Uncle and Aunty couldn't very well call out "Millicent Margaret Amanda" every time they wanted her, so they shortened it to "Milly-Molly-Mandy" which is quite easy to say.
  1928, Joyce Lankester Brisley, chapter 1, in Milly-Molly-Mandy Stories
  Without looking up, she asked: "Is your name Mandy or Amanda Price?""Mandy, Miss Etienne." In other circumstances Mandy would have pointed out that if her name were Amanda the CV would have said so.
  1994, P.D.James, Original Sin, page 10

Mandy²

proper noun
plural Mandys
1. A surname from Hungarian.