Slang >Slang of the Day >Slang Forum >Slang Dictionary >Slang Cards Business Idioms >BizIdiom of the Day >BizIdiom Forum >BizIdiom Dictionary tightie whities Definition: Men's underwear; bikini-like underwear that clings to the body. Example: 1) Which do you prefer, tightie whities or boxer shorts? Etymology: This term is used to describe the type of small, tight underwear some men wear, as opposed to the larger, looser kind called 'boxers'. Synonyms: briefs © 1998-2008 Distance Learning, Inc. All rights reserved. Terms of Use Agreement