MR Share definition Flag A very cool word because it says MR which is the begining of Mr. Wiffle which is the coolest Pooner around =D 'Tis the way of the Wiffle. I poon you. Copy@C.B. MR by Qoob May 10, 2005 0 0 Get merch Get the MR mug. Buy Now — $32.95 See more merch