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having the qualities of hell. usually used as a description of something difficult or chaotic.
"That Chem exam was hellatious. I think I got an F."

or

"That party was hellatious last night, bro. I couldn't even find the keg."
by Puch December 25, 2007
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2
concocted from the murky imagination of a wrestling commentator with a penchant for wearing a crown and having a long shiny staff. ofen time seen ogling young fillies of the wrestling community. taken to mean something that is generally outrageous or not usually seen - can be used in a good or bad sense
jesus! we got in a HELLATIOUS fight with those damn pikeys last night

or

look at her, she is HELLATIOUSLY FIT
by NATH July 16, 2003
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3
(org. Antarctica) The state of being everything cool at the same time.
That shiznit was hellatious, that Stacy just could not handle it a second longer.
by Belle Starr May 24, 2004
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