1 definition by Jishymcfreakingsishy
Sishy- (si-sh-ie) A sishy is when a Jishy (juvenile fuckboy) who happens to look like a fishy (typically Dory) makes it his mishy (mission) to make a big freakin mistake, usually resulting in a mass dilemma.
by Jishymcfreakingsishy July 15, 2017