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1.
A popular group on Facebook dedicated to deadmau5 fans. Includes regular updates as to deadmau5's activities, amusing posts from fans, links to videos of deadmau5 interviews and performances, and discussions on various deadmau5 controversies. By far the best deadmau5 fan group on Facebook, in my opinion.
I'm a proud member of mau5tards. It gives me all the information I could possibly want concerning my hero deadmau5!
by Rellik Uzi August 14, 2010
 
2.
Noun: Mau5-tard 2 syllables - Def: One of the people in following of the hugely popularized electronic music personality Deadmau5. Similar to the Deadheads of the of the group The Grateful Dead, as they will follow Deadmau5 to the ends of the earth and are known for their incessant rambling conversations which always revolve around Deadmau5 videos, shows, merchandise, or lingering rumors about him that have been scattered amongst the community.
Dieselboy, Prodigy, Charles Feelgood, damn even Tiesto's playing at this rave, but almost everyone I talk to said they came to see Deadmau5. It's pretty obvious though they're all wearing crappy homemade versions of that stupid Mickey Mouse hat he wears, T-shirts, I even saw a Deadmau5 water bottle I mean these kids are hypnotized by him. Damn Mau5tards!
by chroncat101 August 05, 2010