ころころ

What does ころころ mean in English?

1. lightly rolling (of a small and round thing)(adv-to, adv, vs)
2. pleasant, high-pitched sound (e.g. bell, young woman's laughter)(adv-to, adv, vs)
3. changing frequently (e.g. conversation, plans); (occurring) in rapid succession (e.g. sumo wrestlers being defeated); fickly; in a fickle manner(adv-to, adv, vs)
4. roly-poly(adv-to, adv, vs)
5. chirp chirp; sound of insects(adv-to, adv)
6. ribbit ribbit; croak croak; sound of frogs(adv-to, adv)
7. roller; lint roller; paint roller(n)