The "religion" of people who are fan of the popular anime series 'The Melancholy of Haruhi Suzumiya'. Haruhism is taken from the first name of the main character of the anime, Haruhi Suzumiya. Haruhist's usually participate in activites related to the anime, such as doing the popular dance seen in the anime (Known as 'Hare Hare Yukai'), as well as other activites such as forming their own "SOS Brigades"
Haruhist people practice Haruhism and Hare Hare Yukai!
by haruhiiist January 4, 2011
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A term describing an event when everything goes your way, despite all odds or the current circumstances.

Pronounced Ha-ru-hee-ism
He didnt study for the final at all, but the teacher got hit by a car and it was cancelled. He always seems to get haruhisms.
by Durandal June 24, 2006
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A new anti-religion that grows more and more, the faithful believe that Haruhi Suzumiya created everything three years ago, giving false memories to living beings and false appearance of old age to things, Haruhism is based exclusively on faith, so which has the same foundations as any other religion.
Currently it is easy to find followers of Haruhism on social networks, there are dozens of active groups.
Haruhism has been the subject of some controversy.
Many followers of older religions consider Haruhism little more than a New Age cult.
by zPretender December 2, 2020
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