1) Any vehicle in the automotive community that has a reputation for having a performance-oriented modification-friendly platform. Typically, modification paths fall into one of two categories: either improving the engine's power output or improving the cars suspension/braking system. Examples of these cars in the US include the Toyota Supra, Mitsubishi Eclipse, Dodge Neon SRT4, the 1979-2004 Ford Mustangs, and many pre-1974 "muscle cars" from US manufacturers.

2) Any vehicle in the automotive community that has a reputation for throwing a fartcan, body kit, and crap paint schemes on it (see also: rice or ricer) because performance doesn't mean shit as long as you look mAd tYte, y0!!! Signs that an owner of a car uses this bastardized definition include posting "tuner" videos that contain plent of civics with bodykits without a single engine bay shot or cardomain pages that make your eyes bleed when loaded.
1) I'd really like a Toyota Supra, but thanks to that retarded Fast and Furious movie, I have to consider a cheaper tuner car.

2) i cAn't wAt3 2 g3tZ h0m3 frUm da sKoOlZ, y0! mUh BoyEE pUt h1z t00ner ciViK wIt dA mAd tYte rImZ on yOUtuBe, y0!
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Tuner Cars are often mistaken for rice burners. However, a tuner car is usually built by someone with a real knowledge of car performance and aerodynamics (as opposed to a ricer, who knows how to make his car handle like crap and attract police attention)

Tuner cars usually have the latest performance enhancing devices, such as a Turbocharger, Sports Exhaust System, Performance ECU, Upgraded Engine/Suspension/Audio Systems, and the babe to go with it all.

These cars are driven by tuners, probably the best people you will ever meet (if you can stand their constant garble about car performance :P)
Wow, that Tuner Car (tuned) Skyline sounds and looks and goes a lot better than the ricer silvia I just saw.

Tuners > Ricers

I like ham and cheese.
by Clontarf[X] January 25, 2004
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The act of rawdogging a girl while twisting her nipples, making her moan in various octaves
Bro, I gave her the memphis tuner last night, she hit more octaves than my guitar.
by BM2055 June 1, 2022
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When you fuck a girl in the ass and she suddenly farts you than proceed to pull out and stick your dick in her mouth and tell her too sing a song till you understand what she is singing.
I gave that girl at the party a sharp tuner when she suddenly said she could sing
by Quadss October 24, 2013
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Tuner Cars are usually imports that have been modified after delivery from the factory to deliver increased performance or enhanced looks
See Fast and Furious Tokyo Drift those are tuner cars
by Brevard Tuner Car March 9, 2012
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controlling the way a girl moans by eating her pussy a certain way
"I didn't like the way my girl moans, so I had to give her a poon tuner"
by TooSmooth March 25, 2012
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A person who decides its totally awesome to down tune your guitar so he can play this certain song, that he cant actually play, then gives back the untuned guitar.
Down tuner:Hey bro mind if i play?

2:Sure.

*downtunes*

2:Uhh..

Down tuner:hold on lemme play this song...
wait never mind i cant actually play it lol..

*gives back untuned guitar*

2:Damn you!
by Seamon October 19, 2008
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