Beem Beem Lmao Share definition Flag The act of pranking an orphanage with mustard gas. Guy 1 - "Beem Beem Lmao"Guy 2 - *Slowly dialing 911* Beem Beem Lmao by MemeBuster3641 October 16, 2020 0 0 Get merch Get the Beem Beem Lmao mug. Buy Now — $32.95 See more merch