Betmun Share definition Flag White kids smoking drugs or dank memers might prenounce "Batman" as "Betmun" just to be funny or stupid. Boy1: (Watching Batman) Yo!! Betmun kicks a$$!!Boy2: Yeahhh dawhg!!!! Betmun by Eskeeeeeetiiiit420 April 20, 2018 0 0 Get merch Get the Betmun mug. Buy Now — $32.95 See more merch