bycicle billy Share definition Flag some hobo that lives outside of my school... he thinks he's a security guard... hahaha bycicle billy, the hobo. jez "did u see bycicle billy at school today?" me: "yes... he asked me for a fudge sandwich. O.o" bycicle billy by Samantaah February 11, 2008 0 0 Get merch Get the bycicle billy mug. Buy Now — $32.95 See more merch