alec イディオム

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alec

Australian slang for a stupid person

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Smart Alec

A smart Alec is a conceited person who likes to show off how clever and knowledgeable they are.

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aleck

aleck
see smart aleck.

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analects

analects
the Analects
a collection of Confucius' teachings

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smart aleck

smart aleck
An impudent or obnoxiously self-assertive individual, a wise guy, as in New teachers often have a hard time coping with the smart alecks in their classes. This expression, dating from the mid-1800s, probably alluded to a person of this description who was named Alec or Alexander, but his identity has been lost.