A person of limited mental capacity who licks the windows of a short bus.
by Bearmama January 22, 2016
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(derogatory) ~ sl.: euphemism for a person of mentally challenged status. Etymology: C20 - Derived from the stereotyped behaviour of mentally challenged people, observed to place their open mouths into prolongued contact with the external windows of public or private transport on which they are seated.
It is offensive and wrong to name a person people who is mentally challenged a 'window licker' or a 'retard'.
by zalzalahbutt November 25, 2006
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Mentally retarded child licking the window of his school bus while watching the outside world.
What are you, a window licker?
He is so stupid. He must be a window licker
by mrkungfu0812 July 30, 2010
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A mentally challenged person riding on "the short bus".

aka: Adams or Negative Waves
The window lickers on the short bus have faces pressed against the window with their tongues hanging out.
by Ann Onimuous December 3, 2003
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A child with a disease in the head; One who rides a short bus
by Mayor Wright October 24, 2018
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An offensive term meaning a retard, someone who licks windows.
Comes from when people with learning disablities etc go on coach trips, it is a common belief that they lick windows.
Random kid 1: *Falls over*
Random kid 2: God, you're such a window-licker!
by JeffIsGoingToHell August 20, 2009
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