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Jason Williams got this just before the 1999-00 season, it means "insane" in Japanese but it also has another meaning which could be determined as inappropriate so when he was in Japan for the first two games of the 2000 season he covered it with a wristband.
it's a discriminatory word at present in Japan. it means, *sigh*, Herkimer Jerkimer, batty, cracko, ding-dong or something. I'm sorry to have written such words. no offence.
kichigai is more politically incorrect than bad imo. However it seems it's on the list of banned broadcasting words and is considered to be a discriminatory word meaning lunatic or maniac. I wonder what the PC word is...