very, totally; lots of

N.B. Generally used in Northern California.
1. That party was hella sketch. What with all those skanky-ass girls.
2. There was HELLA weed tho!
by NorCAL all the way March 1, 2003
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hella is to nor*cal what wicked is to boston
by latida May 4, 2004
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A scientific prefix for 10^27.
Hella-: 2.17 Hellavolts = 2.17 x 10^27 volts
by blanknalb March 4, 2010
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"Hella" is an all-purpose word. It has its roots deep in the soul (I meant to type soil, but soul works here too, haha) of Northern California. It means something along the lines of "very" or "really," but it's much more than that. It's not just a word, but a statement of cultural identification, of a long-standing bond of trust and respect for fellow Northern Californians, and of a mutual understanding between you and the rest of the world that you are from (or, in the case of anyone who has lived with kids from NorCal, that you are an honorary resident) NorCal. As the subtle innuendoes of the word can only be understood by absorption, one must experience and be engulfed by it (as Northern Californians are from birth) to truly understand when its usage is appropriate. Hella is a word. It's a symbol. It's a way of life. Hella.
Correct:

This is hella whack.
I just ate hella brownies.
I'm hella going to the library this weekend.

Incorrect:
I'm going hella to the library
by NorCal, May 22, 2008
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1- The proper name for the country of Greece.

2- An Australian soccer team located in Melbourne. 'South Melbourne Hellas'
by Dave September 22, 2003
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What Chloe from Life is Strange offten sais.
Chloe: thats hella cool max

Max: ...yea hella cool
by WhatTheFridge January 31, 2018
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An intensifier, with a grammatical function and usage similar to "very" or "really".

It's a contraction of "hell of", and may have originated in Alameda County, California. It was definitely in common use in Berkeley public schools as far back as 1979.
"That party was hella rad." (ca. 1981)
by Chris December 24, 2004
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