Mary Jane

Mary +‎ Jane. The noun sense is a literal translation of Spanish María Juana, from María (“Mary”) + Juana (“Jane”)

Mary Jane

1. A female given name

Mary Jane (uncountable)

1. (slang) Marijuana.
   • 2005, Jordan Houston, Darnell Carlton, Paul Beauregard, Premro Smith, Marlon Goodwin, David Brown, and Willie Hutchinson (lyrics), “Stay Fly”, in Most Known Unknown‎, Sony BMG, performed by Three 6 Mafia (featuring Young Buck, 8 Ball, and MJG):

     Mary Jane, since I have met you, girl, you've ruined my brain.

• See also Thesaurus:marijuana

Genericized trademark, from the female name. Mary Jane was a character in the Buster Brown comic strip, licensed by the shoe manufacturer.

Mary Jane (plural Mary Janes)

Mary Jane shoes.

1. A type of shoe, usually for a girl, having a rounded toe and a strap with a buckle.