oats
The form oat is used as a modifier.
1 n-plural Oats are a cereal crop or its grains, used for making biscuits or a food called porridge, or for feeding animals.
Oats provide good, nutritious food for horses., ...oat bran.
2 If a young person sows their wild oats, they behave in a rather uncontrolled way, especially by having a lot of sexual relationships.
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sow one's wild oats phrase V inflects
The kids need to sow a few wild oats.