/ Thesaurus / C Synonyms of clap on Find synonyms for: Verb1. slap on, clap on, slam on, put on, applyusage: apply carelessly; "slap some paint onto the wall"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language