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1.
(1) an act of complete laziness.
(2) Constantly absent.
Jon is being really hilley this morning.
by Craven July 16, 2003
 
2.
Recorded in many forms including Heyley, Highley, Highly, Hilee, Hiley, Hilley, Hillie, Hilly and others, this is an English locational surname. It originates from a place in the county of Shropshire called Highley.

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In this case, it's pronounced Hill-Lee. Can be mispronounced as Hi-Lee. Often mispelled as Hiley, Hilly, and Hilee
Nick: You see Heather over there?
Coleman: Yeah.
Nick: What's her last name?
Coleman: Hilley.
Nick: Oh, so her family is from Enlgand?
Coleman: Yes.
by BeefersNinja14 October 26, 2011