Top Definition
1. Word meaning YAY!, HORAY!, or COOL!

2. A random word you say when there is nothing else to say. Often spoken loudly and extended.
1. someone: Dude! You just killed me!
someone else: I know! Yoish!

2. Someone: so what do you want to do?
someone else: I don't know.

*silence*

Someone: YOOOOOOOOOOOOOOOOOOOOOOISH!
by Devrockx April 01, 2009
1 more definition
a new way of saying hi/yo/hey
yoish bro
or
yoish peeps
by ted lenard johnson October 08, 2008

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