A custom motorcycle, made from new, used or custom-made parts, designed for high speed, light weight, fast handling and aggressive styling. Defining or identifying a streetfighter is not an exact science, but the basic requirements are buckets of attitude and a design geared firmly towards sports and racing rather than cruising.

The origins of the word are vague, but it is believed to have been in use in the UK sometime before the Streetfighters magazine branched away from its sister publication BSH. Various people have claimed that they were the first to use the word, and all have subsequently been beaten around the head with a 916 tailpiece and told to shut the feck up.
Have you seen Mad Ax's streetfighter? It's pucka bike - 750 'zuma, chopped & welded subby, cut down seat, Buell flyscreen, custom guage pod, zx6r frontend, hybrid braking system. Fahkin' mental it is, spits flames out of the stubby can, innit
by Ax January 18, 2005
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someone who fights in unorganized and unprofitable fights, planned or at the heat of the moment. no rules, no gloves, sometimes weapons and usually ends pretty fast, and is not to be confused with people getting jumped or jumping someone with uneven numbers.
oh, I know him, he is a pretty tough streetfighter.
by crazykindacoolguy March 26, 2011
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Something that wouldn't suprise you if it became an Olympic event in Tokyo.
Ryu wins the gold over Guile with a triple hadouken in streetfighting.
by The Original Agahnim August 4, 2021
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v: To use the same move over and over while playing an Arcade game.
"Dude, wtf you're totally streetfightering me. Learn some real moves"
by Schaarmander February 26, 2009
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