See also: sit up and sit-up English Etymology Deverbal from sit up. Noun situp (plural situps) Alternative spelling of sit-up. 2007 April 2, Jessica Kowal, “Lacking Big-City Luster, Junior Miss Carves a Niche”, in New York Times:The girls giggled during the kick line and forced smiles during push-ups, situps and twists. Anagrams puitsWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads