#flap  any broad thin and limber covering attached at one edge; hangs loose or projects freely; "he wrote on the flap of the envelope"
  supertype:  covering.artifact  an artifact that cover something else (usually to protect or shelter or conceal it)
  subtype:  barndoor  an opaque adjustable flap on a lamp fixture; used in photography to cut off light from particular areas
  subtype:  coattail  the loose back flap of a coat that hangs below the waist
  subtype:  codpiece  (15th-16th century) a flap for the crotch of men's tight-fitting breeches
  subtype:  earflap__earlap  one of two flaps attached to a cap to keep the ears warm
  subtype:  dag__jag  a flap along the edge of a garment; used in medieval clothing
  subtype:  lap.flap__overlap  a flap that lies over another part
     subtype:  cuff__turnup  the lap consisting of a turned-back hem encircling the end of the sleeve or leg
        subtype:  trouser_cuff__trousercuff  a cuff on the bottoms of trouser legs
     subtype:  hem  lap that forms a cloth border doubled back and stitched down
     subtype:  lapel  lap at the front of a coat; continuation of the coat collar
        subtype:  revers__revere  a lapel on a woman's garment; turned back to show the reverse side
     subtype:  lappet  a small lap on a garment or headdress
  subtype:  pocket_flap  a flap that covers the access to a pocket
  subtype:  tent-fly__fly_sheet__fly__tent_flap  flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent
  subtype:  tongue.flap  the flap of material under the laces of a shoe or boot

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