n. person who is perceived as useless, stupid, or given more credit than he/she deserves -- usually a person in higher income or social prominence. See also, blowhard.
Entymology/usage: To call someone a "stuffed shirt" is
of course, derogetory. The shirt is given more credit than
the person wearing (or stuffing) it by the person wielding this insult. It is used widely in describing
politicians or a loud-mouthed employer.