thumb nose at
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Related to thumb nose at: like a sore thumb
thumb (one's) nose at (someone or something)
1. Literally, to perform a rude gesture in which one touches their nose with their thumb in order to express contempt or a lack of respect. Did that guy really just thumb his nose at me? Do people still do that?
2. To openly display contempt or an intentional lack of respect toward someone or something. Don't thumb your nose at the boss if you want to keep your job!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
thumb one's nose at someone or something
1. Lit. to show a sign of derision at someone or something by placing the thumb to the side of the nose. (Often while wiggling the other fingers of the hand.) Don't thumb your nose at me unless you want a fight. Fred thumbed his nose at the car as it drove off.
2. Fig. to dismiss someone or something as worthless, verbally. Walter thumbed his nose at Fred and asked the gang to send someone else to do the job. She thumbed her nose at the whole idea.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.