1 definition by Willie "SexyNinja" Coffman

Top Definition
To be or do something/someone of asian greatness.

when some thing goes the way you whant it or is fricken sweet.

something ninja.
1. "Dude that party was Japtastic"

2. "His ride was Japtastic!"
by Willie "SexyNinja" Coffman March 16, 2008
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