English

Noun

sleeping policeman ‎(plural sleeping policemen)

1. (Britain and Caribbean English, idiomatic) A speed bump.
   • 2000 July 5, William Weir, "They're looking up 'Yankspeak' for the Oxford English Dictionary," CNN.com (retrieved 18 Sep 2007):

     We don't care much to figure out terms like "brolly" (umbrella) and "sleeping policeman" (speed bump).