rattling in WordNet English dictionary

1. quick and energetic
   "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze"
   alert  brisk  lively  merry  rattling  snappy  spanking  zippy 
   
2. extraordinarily good or great ; used especially as intensifiers
   "a fantastic trip to the Orient"; "the film was fantastic!"; "a howling success"; "a marvelous collection of rare books"; "had a rattling conversation about politics"; "a tremendous achievement"
   fantastic  grand  howling  marvelous  marvellous  rattling  terrific  tremendous  wonderful  wondrous 
   

1. a rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders)
   "the death rattle"
   rattle  rattling  rale 
   

1. used as intensifiers; `real' is sometimes used informally for `really'; `rattling' is informal
   "she was very gifted"; "he played very well"; "a really enjoyable evening"; "I'm real sorry about it"; "a rattling good yarn"
   very  really  real  rattling  very  really  real  rattling