A word that is used to replace 'sayonara' ("goodbye") or 'matane' ("see you soon") at the end of a sentence in colloquial Japanese speech. It can be translated into English as "see ya" or "catch ya later".
It is part of the
Tokyo Shitamachi dialect and used to be a very popular informal
slang expression used primarily by
boys and men until sometime ago. Its usage has declined in the past 20 years.
Contrary to what the previous poster has written, it is not necessarily a rude way to say "bye" or only used when you are angry at someone. Although (just like most slang
words) if used in the proper context it
may be interpreted as being dismissive or sarcastic.