a quick, quiet, high-sounding laugh:
'Catch me if you can,' she said with a giggle.
Vicky suppressed a nervous giggle.
He looked so ridiculous I got the giggles (=started to giggle).
Soon the whole group had the giggles.
Margaret was seized by a fit of the giggles (=she could not stop giggling).
give somebody the giggles (=make someone start giggling)
2 British English informal
something that you think is fun to do that will not hurt anyone or anything:
Go on, it'll be a giggle!