Definition of tight–ass
chiefly US slang
: a rigidly straitlaced, conventional, or inhibited person <As Indiana warmed up, Wilkerson noticed Bo Ellis, Marquette's star forward, pointing to the Hoosiers' retro warmups and laughing. Clearly, this game matched the cool dudes from Milwaukee against the tight-asses from Bloomington. — Jack McCallum>
tight–assedplay \ˈtīt-ˌast\ adjective <Like the schoolteachers who had tormented their childhoods, earnest and tight-assed, humorless and self-righteous. — Robert Stone>
First Known Use of tight–ass
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