rain man

Etymology 1
From the 1988 film , about an autistic man with the name Raymond, misinterpreted as “Rain man” by his brother in childhood.

Noun

 * 1)  An autistic, or mentally and/or socially impaired person.
 * 2)  A non-autistic or impaired person whose mannerisms are similar to such people.
 * 3)  An expert at something.

Noun

 * 1) A man who is believed to have power to control the rain.
 * 2) A spirit of the rain.
 * 1) A spirit of the rain.
 * 1) A spirit of the rain.
 * 1) A spirit of the rain.
 * 1) A spirit of the rain.