side-splittingly
adverb/ˈsaɪd splɪtɪŋli/
/ˈsaɪd splɪtɪŋli/
(informal)- in a way that is extremely funny
- It is side-splittingly funny to read.
Check pronunciation:
side-splittingly
Definition of side-splittingly adverb from the Oxford Advanced Learner's Dictionary