all show and no go

all show and no go

slang Visually appealing but lacking ability or substance. That Porsche is all show and no go—the previous owner ruined its engine. Patty is beautiful but ditzy, truly all show and no go.
See also: all, and, go, no, show
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

all show and no go

Sl. equipped with good looks but lacking action or energy. (Used to describe someone or something that looks good but does not perform as promised.) That shiny car of Jim's is all show and no go. He's mighty handsome, but I hear he's all show and no go.
See also: all, and, go, no, show
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

all show and no go

phr. equipped with good looks but lacking action or energy. (Used to describe someone or something that looks good but does not perform as promised.) That shiny car of Jim’s is all show and no go.
See also: all, and, go, no, show
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
See also: