Beefy Flap Jacks Share definition Flag The skin that is left hanging after someone pushes a large Walrus dildo up the booty. Damn your beefy flap jacks are torn up out after taking such a large Walrus dildo! Beefy Flap Jacks by Melamyemma October 7, 2017 0 0 Get merch Get the Beefy Flap Jacks mug. Buy Now — $32.95 See more merch