Polar Bear Brother Share definition Flag A person, usually a guy, who has had sex with one or more females that you have also had sex with. John had sex with Linda, who I've also had sex with. John and I are now Polar Bear Brothers. Polar Bear Brother by cd44 March 22, 2013 0 0 Get merch Get the Polar Bear Brother mug. Buy Now — $32.95 See more merch
