take (one) for an idiot(redirected from take them for an idiot)
take (one) for an idiot
To presume or believe that one is very stupid or foolish. I'd advise you not to take her for an idiot. She may play dumb, but she's very crafty. Do you take me for an idiot? There's no way I'm falling for that again.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
take someone for an idiot and take someone for a fool
to assume that someone is stupid. I wouldn't do anything like that! Do you take me for an idiot? I don't take you for a fool. I think you're very clever.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.