McDouble Share definition Flag When a guy takes a McDonald's burger (or any other crap fast food burger) and proceeds to stuff it in the vaginal crease of a female counterpart and then fucks it. Great we stopped at McDonald's and she let me McDouble her. McDouble by CAHMCKW January 8, 2011 0 0 Get merch Get the McDouble mug. Buy Now — $32.95 See more merch