Shoot the B's Share definition Flag A slang way of describing someone throwing a barspin on a BMX. A barspin is a BMX trick. BMX kid #1 - "Can you shoot the B's? BMX kid '2 - Hell yeah I can. Shoot the B's by ollie39mac August 1, 2007 0 0 Get merch Get the Shoot the B's mug. Buy Now — $32.95 See more merch