Bumleach Share definition Flag A word used to insult someone if they are fat, or don't agree with even though your always right Timmy : wanna play fortniteMe : frick off bumleach your not a gamer *hits a medium dab* Bumleach by Youwannaplayfortnite February 15, 2019 0 0 Get merch Get the Bumleach mug. Buy Now — $32.95 See more merch