windae licker

A Scottish colloquialism (used mainly in the West of Scotland) used to define someone of limited mental ability. This term seems to have superceded the colloquial term, mongol.

He/she eats lots of cocopops, so I think they're a windae licker.

winda licker

any stupid or retarded individual that is doing something mindless

look at that winda licker he gonna wipe out on that ice!