| 1. | any uncultivated species of Avena, esp. a common weedy grass, A. fatua, resembling the cultivated oat. |
| 2. | a hardy plant, Uvularia sessilifolia, of the lily family, of eastern North America, having deep green, hairy leaves and greenish-yellow, tubular flowers. |
| 3. | sow one's wild oats, to have a youthful fling at reckless and indiscreet behavior, esp. to be promiscuous before marriage. |
