7  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Flap  \Flap\,  v.  t.  [imp.  &  p.  p.  {Flapped};  p.  pr  &  vb  n. 
  {Flapping}.]  [Prob.  of  imitative  origin;  cf  D.  flappen,  E. 
  flap,  n.,  flop,  flippant,  fillip.] 
  1.  To  beat  with  a  flap;  to  strike. 
 
  Yet  let  me  flap  this  bug  with  gilded  wings.  --Pope. 
 
  2.  To  move  as  something  broad  and  flaplike  as  to  flap  the 
  wings;  to  let  fall,  as  the  brim  of  a  hat. 
 
  {To  flap  in  the  mouth},  to  taunt.  [Obs.]  --W.  Cartwright. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Flap  \Flap\,  v.  i. 
  1.  To  move  as  do  wings,  or  as  something  broad  or  loose;  to 
  fly  with  wings  beating  the  air. 
 
  The  crows  flapped  over  by  twos  and  threes.  --Lowell. 
 
  2.  To  fall  and  hang  like  a  flap,  as  the  brim  of  a  hat,  or 
  other  broad  thing  --Gay. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Flap  \Flap\,  n.  [OE.  flappe,  flap,  blow,  bly-flap;  cf  D.  flap, 
  and  E.  flap,  v.] 
  Anything  broad  and  limber  that  hangs  loose,  or  that  is 
  attached  by  one  side  or  end  and  is  easily  moved  as  the  flap 
  of  a  garment. 
 
  A  cartilaginous  flap  upon  the  opening  of  the  larynx. 
  --Sir  T. 
  Browne. 
 
  2.  A  hinged  leaf,  as  of  a  table  or  shutter. 
 
  3.  The  motion  of  anything  broad  and  loose,  or  a  stroke  or 
  sound  made  with  it  as  the  flap  of  a  sail  or  of  a  wing. 
 
  4.  pl  (Far.)  A  disease  in  the  lips  of  horses. 
 
  {Flap  tile},  a  tile  with  a  bent  up  portion,  to  turn  a  corner 
  or  catch  a  drip. 
 
  {Flap  valve}  (Mech.),  a  valve  which  opens  and  shuts  upon  one 
  hinged  side  a  clack  valve. 
 
  From  WordNet  r  1.6  [wn]: 
 
  flap 
  n  1:  any  broad  thin  and  limber  covering  attached  at  one  edge; 
  hangs  loose  or  projects  freely;  "he  wrote  on  the  flap  of 
  the  envelope" 
  2:  an  excited  state  of  agitation;  "he  was  in  a  dither";  "there 
  was  a  terrible  flap  about  the  theft"  [syn:  {dither},  {pother}, 
  {fuss},  {tizzy}] 
  3:  the  motion  made  by  flapping  up  and  down  [syn:  {flapping},  {flopping}, 
  {flutter},  {fluttering}] 
  4:  a  movable  piece  of  tissue  partly  connected  to  the  body 
  5:  a  movable  airfoil  that  is  part  of  an  aircraft  wing;  used  to 
  increase  lift  or  drag  [syn:  {flaps}] 
  v  1:  move  in  a  wavy  pattern,  as  of  curtains  [syn:  {undulate},  {wave}] 
  2:  move  noisily;  "flags  flapped  in  the  strong  wind" 
  3:  move  with  a  thrashing  motion;  "The  bird  flapped  its  wings"; 
  "The  eagle  beat  its  wings  and  soared  high  into  the  sky" 
  [syn:  {beat}] 
  4:  move  with  a  flapping  motion;  "The  bird's  wings  were 
  flapping"  [syn:  {beat}] 
  5:  make  a  fuss;  be  agitated  [syn:  {dither},  {pother}] 
  6:  pronounce  with  a  flap,  of  alveolar  sounds 
 
  From  Jargon  File  (4.2.3,  23  NOV  2000)  [jargon]: 
 
  flap  vt  1.  [obs.]  To  unload  a  DECtape  (so  it  goes  flap,  flap, 
  flap...).  Old-time  hackers  at  MIT  tell  of  the  days  when  the  disk  was 
  device  0  and  DEC  microtapes  were  1,  2,...  and  attempting  to  flap  device 
  0  would  instead  start  a  motor  banging  inside  a  cabinet  near  the  disk. 
  2.  By  extension,  to  unload  any  magnetic  tape.  See  also  {macrotape}. 
  Modern  cartridge  tapes  no  longer  actually  flap,  but  the  usage  has 
  remained.  (The  term  could  well  be  re-applied  to  DEC's  TK50  cartridge 
  tape  drive,  a  spectacularly  misengineered  contraption  which  makes  a  loud 
  flapping  sound,  almost  like  an  old  reel-type  lawnmower  in  one  of  its 
  many  tape-eating  failure  modes.) 
 
 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  flap 
 
  1.    To  unload  a  {DECtape}  (so  it  goes  flap, 
  flap,  flap).  Old-time  {hackers}  at  {MIT}  tell  of  the  days 
  when  the  disk  was  device  0  and  {microtapes}  were  1,  2, 
  etc  and  attempting  to  flap  device  0  would  instead  start  a 
  motor  banging  inside  a  cabinet  near  the  disk. 
 
  The  term  is  used  by  extension,  for  unloading  any  magnetic 
  tape.  See  also  {macrotape}.  Modern  {cartridge  tapes}  no 
  longer  actually  flap,  but  the  usage  has  remained. 
 
  The  term  could  well  be  re-applied  to  {DEC}'s  {TK50}  cartridge 
  tape  drive,  a  spectacularly  misengineered  contraption  which 
  makes  a  loud  flapping  sound,  almost  like  an  old  reel-type 
  lawnmower  in  one  of  its  many  tape-eating  failure  modes. 
 
  2.    See  {flapping  router}. 
 
  [{Jargon  File}] 
 
  (1997-06-17) 
 
 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  FLAP 
 
  A  {symbolic  mathematics}  package  for  {IBM  360}. 
 
  ["FLAP  Programmer's  Manual",  A.H.  Morris  Jr.,  TR-2558  (1971) 
  US  Naval  Weapons  Lab]. 
 
  [Sammet  1969,  p.  506]. 
 
  [{Jargon  File}] 
 
  (1994-10-17) 
 
 

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