giggle like a schoolgirl

giggle like a schoolgirl

To giggle or laugh uncontrollably because of something silly, immature, or embarrassing. Dirty jokes like that always make me giggle like a schoolgirl! I was so flustered when Dean started flirting with me that I was giggling like a schoolgirl by the end of our conversation. Mortified, I could only giggle like a schoolgirl when Susie pointed out that I'd tucked my skirt into my underwear.

See also: giggle, like, schoolgirl

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