Short for Mazdaspeed3, the fastest car that Mazda currently produces cabale of 0-60 in 5.5 seconds and a top speed of 155 mph. A q-ship.
Ricer 1: Man, that ms3 just toasted us, I never saw it coming.

Ricer 2: Yeah, I've never seen a car cum all over the road so hard before.
by dandeisch June 13, 2008
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Short for Mazdaspeed3, the fastest car that Mazda currently produces cabale of 0-60 in 5.5 seconds and a top speed of 155 mph. A q-ship.
Ricer: Man, that ms3 just toasted us, I never saw it coming.

Muscle Guy: I just about sh*t myself when I saw that little turd fly by.
by dandeisch June 13, 2008
Get the ms3 mug.