Getting Rid of the Clog
If your disposal is draining real slow or not at all, the problem is most likely in the drain trap which is the P or S shaped plumbing line right after the disposal discharge.
To get rid of the clog, disconnect the drain trap and remove the trap from the discharge drain of the disposal. Check for clogs or obstructions.
If a clog is not found in the trap then the clog lies in the line going into the wall or beyond the vertical pipe going into the wall. That calls for clearing the obstruction with a sink auger.