Read the dictionary definition of rattling. All definitions for this word.
1. a rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders)
1. the death rattle
2. quick and energetic
1. a brisk walk in the park
2. a lively gait
3. a merry chase
4. traveling at a rattling rate
5. a snappy pace
6. a spanking breeze
3. extraordinarily good or great; used especially as intensifiers
1. a fantastic trip to the Orient
2. the film was fantastic!
3. a howling success
4. a marvelous collection of rare books
5. had a rattling conversation about politics
6. a tremendous achievement
4. used as intensifiers; `real' is sometimes used informally for `really'; `rattling' is informal
1. she was very gifted
2. he played very well
3. a really enjoyable evening
4. I'm real sorry about it
5. a rattling good yarn