Caboose Juice Share definition Flag Another word for Anal Lubricant (A man rummaging through a woman's night stand), "Oh wow, caboose juice.. your mom is a freak! Caboose Juice by Peanut_Butter September 23, 2012 0 0 Get merch Get the Caboose Juice mug. Buy Now — $32.95 See more merch