Serifuckingously Share definition Flag An exclamation meaning "seriously" but with an added bit of extremism, and vulgarity. Person 1: Man, it's really snowing out there. Person 2: Serifuckingously! Serifuckingously by Matt May 13, 2005 0 0 Get merch Get the Serifuckingously mug. Buy Now — $32.95 See more merch
