From Longman Dictionary of Contemporary Englishgigglygig·gly /ˈɡɪɡli/ adjective giggling a lot a giggly schoolgirl
Examples from the Corpus
giggly• You came to understand more about Erma Bombeck at each stop, with each giggly anecdote.• He had never seen her like this before, gullible and giggly, at times even shy and blushing.• Just the golden giant himself, still clasping Mala, but almost laughingly fending off the attentions of the giggly frag hags.• On the North Side, there are parks, beaches, giggly girls at Wrigley Field.• On the day she died, she said, she was in a giggly mood. 