Slippery Newman Share definition Flag when a man gathers the squirt juice from a woman and uses it to whale it(jack off). The other day Jimothy gave himself a real nice slippery newman with Bertha's Juice. Slippery Newman by Daveball April 20, 2010 0 0 Get merch Get the Slippery Newman mug. Buy Now — $32.95 See more merch