Swanks is a colloquial slang term that often refers to showing off or boasting in an exaggerated manner. Some synonyms for swanks include flaunts, struts, brags, blusters, boasts, and parades. Other related words could include shows off, grandstands, displays, exhibits, and preens. All of these words indicate a behavior of trying to impress others and garner attention. It is important to use these terms with intention and awareness, as they can sometimes carry negative connotations and be seen as arrogant or obnoxious. So, next time you witness someone swanking, you can aptly describe their behavior by using one of these alternative words.