convulsively uproarious: sidesplitting laughter.
producing uproarious laughter; extremely funny: sidesplitting farce.

Origin of sidesplitting

First recorded in 1855–60; side1 + splitting
Related formsside·split·ting·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for side-splitting

Contemporary Examples of side-splitting

Historical Examples of side-splitting

British Dictionary definitions for side-splitting



producing great mirth
(of laughter) uproarious or very hearty
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012