1 definition by sirPbaggy

adj. when someone is very good at something they do they are called 'massivenassif'
Damn!! Dem dat dere boy jus hit 6 hole ins oneses!! He be massivenassif!

wow, joe just won a 19,000$ pot playing poker. quite massivenassif!
by sirPbaggy November 26, 2005
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