definition of
[rattling]

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

[2] #2 rattling r. [very, really, real] 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". wn

[3] #3 rattling s. [alert, brisk, lively, merry, snappy, spanking, zippy] 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". wn