Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Informal A person regarded as obnoxiously self-assertive.
- n. Informal An impudent person.
Wiktionary
- n. One who is given to obnoxious or insolent humor; a wise guy.
- n. One who is pretentious about their own cleverness or knowledge; a know-it-all.
- n. One who is obnoxiously self-assured; a show off.
- n. rare A well-dressed person.
WordNet 3.0
- n. an upstart who makes conceited, sardonic, insolent comments
Etymologies
- Aleck is a nickname for Alexander. The phrase "smart aleck" is possibly derived from the name Aleck Hoag, a 19th century con man and thief. (Wiktionary)
- Perhaps after Aleck Hoag, 19th-century American confidence man and thief. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
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Lists
These user-created lists contain the word ‘smart aleck’.
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Character traits
Falstaffian, drumble, despond, grotesque, élan, anile, feal, smart aleck, phat, blowsy, haver, hoary and 18 more...
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Did you just insult me?!
Words to use in moments of high frustration that they hopefully won't understand.
naïf, jerk, temerity, presumptuousness, presumptuous, arrogant, impudence, insolence, hick, bitch, asshole, ass and 61 more...
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Preliminary #1
Just trying to make things more manageable for the moment
life of riley, tongue in cheek, long in the tooth, dumb luck, bone up, pony express, deal breaker, whoopsy daisy, scarce as hen's t..., pony up, thick as thieves, dumb bunny and 78 more...
Tweets
Looking for tweets for smart aleck.

Prolagus A clever Dick. Mar 13, 2010