mufuger Share definition Flag Word created by a Joseph in order to condense the entirety of "mother fucker" and be used as simply another phrase to catch someone's attention. Skater 1: "Mufuger, look at how high he popped his Ollie." Skater 2: "Dude, I know. Mufuger." mufuger by JD_Smooth January 8, 2014 0 0 Get merch Get the mufuger mug. Buy Now — $32.95 See more merch