Fake Japanese or Wannabe Japanese. See Wapanese and Blapanese.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

A hogdepodge of incoherently uttered Asian brand names spewed desperately in one of the following situations:

1) When one claims to speak Japanese and finally gets challenged to do it, although he/she cannot in reality
2) When one is "meeting the parents" of a mad hot Asian chick and gets overly cocky by initiating a conversation with the two words of Korean/Mandarin that he knows and is forced to continue
3) When one stumbles out of a Tokyo brothel upon losing his V-card and needs to voice his unfettered bliss

means japanese. made up by psychotic. relates to crapan!