shmistletoe Share definition Flag A word used in the holiday season to describe a penis with mistletoe on it used to elicit a kiss Dude Do you see that chick. Friend Yeah bro. Dude I'd let her stand under my shmistletoe shmistletoe by IrishRocket December 4, 2016 0 0 Get merch Get the shmistletoe mug. Buy Now — $32.95 See more merch