1. with a rushing sound (of rain, waves, etc.); with a whoosh (e.g. when pouring rice); with a rustle; with a soft rattle (Onomatopoeia)

2. in a sudden collapse; with a clatter (Onomatopoeia)

3. swarming (e.g. of insects); surging (Onomatopoeia)

4. nimbly; with a dash (Onomatopoeia)