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2.
some kind of socko word.
a sarcastic half-retarded word derived from hilarious.
"ooh yeah dats halarious, deerf"
by Madd Jester September 20, 2003
 
1.
The way far too many people spell "hilarious." It is definitely one of the most popular misspelled words in the english laguage. "Halarious" is how most people pronounce "Hilarious" in every day speech. This is the root of the word.
An IM conversation:
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Joe: "Dood thatz halarious"

Grant: "No dude, it's your typing that's hilarious."
by Cody Murray August 08, 2006