Slang term to describe fuckin a girl real good. The term coach is from Chicago Bears Coach Mike Ditka. Since Ditka sounds a lot like Dicka we say i'mma give that bitch some of this dicka or some coachin. Ditka led the Bears to a superbowl victory so that's some good Coachin.
I'mma give that bitch some coachin tonight. I'mma put that Mike DICKA on that bitch, some of this good chicago coachin.