Recorded in 1969 at the famous Muscle Shoals Studio, Mick Jagger admits that even he doesn’t know what he was “going about” with the lyrics to this song.
Keith Richards says that famous line “Scarred old slaver know he doin’ alright” was actually a mistake. Back then it would have been someone at the publishing company that would come up with that transcription for the lyrics. In this case they got it wrong.
Apparently, Jagger was most likely singing, “Skydog Slaver,” as “Skydog” was a nickname for Muscle Shoals regular Duane Allman, since he was high all the time
Here’s Brown Sugar by the Rolling Stones