Brothers of the Road (BTRs) Share definition Flag When two guys do anal with the same girl at different times. You do you fucked her in the butt too?! We're Brothers of the Road (BTRs)!! Brothers of the Road (BTRs) by LD0Quatre February 16, 2014 0 0 Get merch Get the Brothers of the Road (BTRs) mug. Buy Now — $32.95 See more merch