Related formsside·split·ting·ly, adverb
Examples from the Web for side-splitting
At which point the breakfasters erupted in uncontrollable, explosive, side-splitting laughter.
Go right up and entertain her with some side-splitting stories.Stover at Yale|Owen Johnson
One of the most piquant productions of this side-splitting author is now publishing in numbers by Harper and Brothers.
A side-splitting novelty, full of "good lines" and comical incident and character.The Templeton Teapot|Grace Cooke Strong