mudmouth_(splatoon)
A type of rare boss salmonid of Splatoon (series)'s Salmon Run (splatoon). This sludge covered boss is event-specific and when they erupt from gushers they are accompanied by lesser salmonids such as smallfry (splatoon)s, chum (splatoon)s, and cohock (splatoon)s.
They become the main source for Golden Egg drops when a freelancer tosses a splat bomb (splatoon) into its maw.