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on (one's) good behavior

on (one's) good behavior

Being very polite or exercising exceptionally good manners. Primarily heard in US. Now, you kids must be on your good behavior for your Auntie this weekend! Good morning, class. I hope everyone was on their good behavior for the substitute teacher yesterday.
See also: behavior, good, on

Common Names:

NameGenderPronouncedUsage
Sayakasah-yah-kahJapanese
SynnÖVe-Swedish
Candelakahn-DE-lahSpanish
A&Eth;AlbjÖRg-Icelandic, Ancient Scandinavian
Osmund-Anglo-Saxon
Azazel-Biblical
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