Slutty Grandma Share definition Flag See also hoe bag, whore, and Great Dane Wrinkly, 200 year old hag that has sex with younger people. Opal: Millie is such a slutty grandma! I wouldn't let her babysit my kids anyday! Slutty Grandma by Raccooninabox June 16, 2006 0 0 Get merch Get the Slutty Grandma mug. Buy Now — $32.95 See more merch