Definition of wild oat
1 : any of several Old World wild grasses (genus Avena); especially : a Eurasian annual weed (A. fatua) common in meadows and pastures
2 plural : offenses and indiscretions ascribed to youthful exuberance —usually used in the phrase sow one's wild oats
First Known Use of wild oat
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Britannica.com: Encyclopedia article about "wild oat"
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