#butt.part__stub  the small unused part of something (especially the end of a cigarette that is left after smoking)
  supertype:  #part.physical_object__portion  something less than the whole of a human artifact: "the rear part of the house"; "glue the two parts together"
  subtype:  #cigar_butt__cigarbutt  small part of a cigar that is left after smoking
  subtype:  #cigarette_butt__cigarettebutt  small part of a cigarette that is left after smoking
  subtype:  #roach  the butt of a marijuana cigarette

No statement uses or specializes #butt.part; click here to add one.