The process of taking an unmanned hotdog bun and filling it with your own meat, then after lubricating with all the necessary condoments, furiously fucking it.
Friends that you only spend time with to bun together (smoke cannabis) because smoking can be a social activity, but you don't interact in other situations and your conversations revolve around nothing but drugs.
After I gotsober, I realised most of my circle were just bunning friends and not real ones