sow one's wild oats

Meanings:

• 1.

  USUKwidespreadinformalcolloquial
  • To engage in promiscuous, sexually adventurous, or libertine behavior, especially during youth before settling down.

• 2.

  USUKwidespreadinformalcolloquial
  • To behave recklessly, extravagantly, or indulgently in one's younger years; to experiment with freedom or self‑assertion.