T-shirt slogan: http://www.idakoos.com/tshirt+long+sleeve/kiss-im-decorous,772152 Google: in keeping with good taste and propriety; polite and restrained. Merriam-Webster: marked by propriety and good taste Urban Dictionary: When a person is being really extra and rude but you have to deal with it while being polite and restrained http://www.urbandictionary.com/define.php?term=decorous