Apart from the thing that another commenter has clarified about tom-toms, "sen Di'" is an abbreviation of "sen Dio" 'Godless'. Edit: I just noticed that still

Apart from the thing that another commenter has clarified about tom-toms, "sen Di'" is an abbreviation of "sen Dio" 'Godless'. Edit: I just noticed that still another commenter also already clarified this part too.