From the slave days, a common term used to describe taking a shit. Workers were not allowed to leave the fields to release their bowels, so they often had to do this in the bushes.
Bushin is a verb used to describe people who say they have quit somethingjust so they don't have to buy it.
guy #1 : "Hey man you got a ciggarette?"
guy #2 : "Thought you quit bro?"
guy #1 : "Naw I am still tryin to"
guy #2 : "Why you bushin? We all know your just a cheap ass!"
Man why you keep bushin me around we know you got some money on da herb!