mississippi mud truffle Share definition Flag when you take a big, warm, and dark steamer on someones face during sex. Greenslate: Hey i just got a Mississippi mud truffle... Derrick: Greenstain your fucked up man. mississippi mud truffle by vault1213 March 22, 2009 0 0 Get merch Get the mississippi mud truffle mug. Buy Now — $32.95 See more merch