Suckfish Share definition Flag A talentless, irritating person who gets on everyones nerves. Often used as an insult (in my school) Person 1: Omg I'm so irrelevant, but yet I can sing.Person 2: Can you shut up you suckfish. Suckfish by americanrain October 17, 2014 0 0 Get merch Get the Suckfish mug. Buy Now — $32.95 See more merch