1. (noun) A member of an Amish community, or one who practices their religion - usually considered offensive.
2. (verb) To commit an act of violence or vandalism against the Amish, esp. by throwing stones or similar objects at an Amish-operated horse-drawn vehicle as it passes along a road (most commonly used intransitively and in the present participle)
"Any boy or young man in this town who says he's never been out claipping is a liar" - from the TV movie "A Stoning In Fulham County"