Breadcrumb Home > Thesaurus > S Synonyms of sidesplitter Find synonyms for: Noun 1. belly laugh, sidesplitter, howler, thigh-slapper, scream, wow, riot, joke, gag, laugh, jest, jape usage: a joke that seems extremely funny WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of sidesplitter (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: apotheosis Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language