1)Someone who is Mentally ill, with dissorders such as Autism or downs syndrome
2)Someone who's behaviour can be related or compared to that of a mentally ill person
That Guy with the huge forehead is a spazz
by C.May June 26, 2004
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A Haliegh or a person who is a total clutz. But makes her/his pain or embarrassment funny to all. But can totally make no sense what so ever.
Haliegh, Alison, My chemical romance, Gerard, frank, ray, bob, mikey, a spazz
by Haliegh April 26, 2008
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A total idiot. One who is very angry. See: Albu
Looks like Albu is spazzing again
by BOFH July 12, 2004
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When one thing or person ruins something that is otherwise awesome.
Nigel: What the hell, that seagull just shat on the ice cream.

Rodrigo: Well isn't that a spazz in the batter.
by Esteban Blanco February 6, 2011
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failed attempt to keep up or follow along to an exercise routine
Jim's convulsive thrashing to the latest Denise Austin exercise DVD still burned calories but definitely was a stellar example of spazz-ercise.
by Happy Girly of course! January 23, 2011
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Uncontrollably freaking out (may invole flopping around like an awkward fish or just screaming for no APPARENT reason).
Pete Wentz and Brendon Urie: (approaching) Hey guys, hows it going?

Fangirl 1: IJNFGIUNGIMOWIOAOVBNFQWASDFFJGHHDJDKLLLVMNBNSDFINDINFEIFNMIANEFUENDGGNVUNJKS!!!!!!!

Fangirl 2: Dont worry, she's just spazzing out

Fangirl 2, now realizing that she had just talked to Brendon Urie and Pete Wentz says the following and then faints:

GKNFKGNTJGMRORGSGKNLFLWPEORIGFMKMFSEROWEOMRGNSEMFASDFGHJHGFJDSLDKGJHGFKDIRHGTREIOEGJBMVCNBCBM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
by FANGIRL April 28, 2012
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A kid, normally a teenager, who spazzes out over any little obsession they have including, but not limited to, anime characters, guys, musicians, or smurfs. Some traits are as follows: high pitched voices, hyperactivity and adorableness.
Morgan sat leafing through the manga in absolute silence. Without warning, she began bouncing up and down in her seat, jabbing her finger down at a depiction of her favorite anime character as she squeaked, "oh my gosh! He is so cute! I want to marry him! I can't believe he's not real!!"
"Gosh Morgan, you spazz hamster, calm down." Annie replied, giving her a sidelong glance.
by Shadow_violist May 23, 2008
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