slop tail Share definition Flag The drunken 70 year old overweight biker chick that still thinks she is in her prime. Hot and horny and willing to grind a toilet plunger. Sally last night was in her prime, she turned into a slop tail after all the guys turned her down. slop tail by Boomer24 October 17, 2010 0 0 Get merch Get the slop tail mug. Buy Now — $32.95 See more merch
