Best definition
A japanese company that produces some of the finest motorcycles, ATVs, and Stereo equiptment around. Contrary to popular beleif among Honda, Kawasaki, and Suzuki enthusiasts, its not just a shitty company that makes shitty bikes that require maintenence all the time.
Before race: Man that Yamaha’s a peice of shit, I can take that anytime.

After race: Fuckin’ bike, its not working right, I would have toasted you.
Yamaha: define #2
Along with the afore mentioned electronics and small, open motor vehicles they also make a wide variety of musical instruments.

Yamaha makes some very well made Brass, Woodwind, Stringed and percussion equipment. Thou they are not the best money can buy, if you want a good musical instrument that will last you years don’t pass buy them.
The first musical instrument I ever bought was a Yamaha YSL Trombone, 9 years ago. That horn went though 3 years of middle school, 4 years of marching band in high school and is in its second year of college football-band usage. I use a Bach for class now but I will have that Yamaha until the day I die.
Yamaha: define #3
word shouted when someone of a specific coolness and group is in or around the Dehater Farm area. Word orginated in Florida by Sarge!
Yamaha: define #4
A company that makes motorised vehicles AND music instruments. Probably some other non related things as well.
Why you would want to buy a trombone from a company that makes dirtbikes is beyond me.
Yamaha: define #5
a big company that gave whitney huston’ a lift with that vibes sound
ahh hear that yamaha dx sound,

yeah I know, its awesome
Yamaha: define #6
Stunning breasts, boss tits,
Fuckin hell gen, your tits are big, but look at the yamahas on that slut!
Yamaha: define #7
The roller coaster enthusiast’s roller coaster rating scale, derived from the expression “Yaaa! My hat!” refering to the lost of a hat while riding. The number of Yamahas indicates the speed and quality of a ride, the greater the number, the better the ride. The antonym is Nomaha.
That child’s roller coaster wasn’t even worth one yamaha.