retarded fish frog Share definition Flag A statement made by Mrs. Garrison in the South Park two parter episodes where Cartman freezes himself. "Do you mind telling me why my daughter thinks she's a retarded fish frog!?" retarded fish frog by unhunkyguy February 4, 2009 0 0 Get merch Get the retarded fish frog mug. Buy Now — $32.95 See more merch