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sniff at (someone or something).
To dismiss or belittle someone or something as being not worthwhile, important, or valuable. Sure, a hundred bucks isn't a huge amount to win, but it's definitely nothing to sniff at! The CEO just sniffed at the deal presented by the rival corporation.
sniff at someone or something
1. Lit. to try to get the smell of someone or something by smelling. The dog sniffed at the visitor. The cat sniffed at almost every inch of the rug that the dog had walked on.
2. Fig. to show one's disapproval of someone or something by sniffing. (Sometimes this is figurative, the "sniffing" being expressed by tone of voice or gesture.) I made one suggestion, but Claire just sniffed at me. Gale just sniffed at the idea and would say nothing.
1. To use the sense of smell to investigate something: I sniffed at the jar to see what it held.
2. To regard someone or something in a contemptuous or dismissive manner: The critics sniffed at the film, even though it was very popular. The amount of funds we've managed to raise in a week is nothing to sniff at.