Granninator Share definition Flag Muffybear's grandmother. Owns a Lovebunny. Creeps on her harem of men, and is overall a charmingly creepy person. She is such a Granninator, you see the way she's creeping on that guy? Granninator by GrannyHeartsMen January 16, 2011 0 0 Get merch Get the Granninator mug. Buy Now — $32.95 See more merch