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2.
When a bunch of Japs (Jewish American Princesses) start bitching and complaining.
JAP 1: Oh my god its so hot here.
JAP 2: Im hungry
JAP 3: I lost my Evian water bottle
All three: I wanna go home
Shappy: Oh shit... hide! We have a jap attack on our hands!
by Shappy November 30, 2006
 
1.
Being backstabbed by a co-worker at the office, causing irreparable damage to one's career.
I've just been fired, because my sonofabitch coworker japattacked me in a peer performance review.
by Quincy H. March 21, 2006
 
3.
when someone creeps up behind you and attacks you with no warning

comes from the unprovoked jap attack on Pearl Harbor on December 7th 1941--but those bastards paid for it--Little Boy and Fat Man
Donyell got jap attacked by Leroy and his posse while chillin' in his own crib yo! Word!
by Steve February 12, 2004