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sidesplitter

[ sahyd-split-er ]
/ ˈsaɪdˌsplɪt ər /
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noun
something that is uproariously funny, as a joke or a situation.
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Origin of sidesplitter

1875–80; from the idiom to split one's sides (laughing); see -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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