megadayron Share definition Flag If a guy is megadayron, he's got the power, he's the man, got the pibbs in the hood. -Hey, you think Rick is the megadayron? -Hell yeah, he's the shittest motherfucker. megadayron by Mark Araujo May 15, 2008 0 0 Get merch Get the megadayron mug. Buy Now — $32.95 See more merch