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an area of large moutains or hills.
The land to be surveyed was hillacious.
by Kevin Burke June 24, 2005
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Sep 8 Word of the Day
A casual invitation / threat used by an individual that is not afraid of fucking someone up.
PAUL: I'm going to beat your ass.

JACK: Fuck around and find out, fool!
by NX STARCHILD October 16, 2020
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2
Hillariously Delicious.
Holy crap that joke was hillacious. or wow look at that kids face how hillacious is that
by icefire2 January 22, 2007
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