To lead a promiscuous and self-indulgent lifestyle. Less stylistically, to nail lots of women before you settle down.
Before Frank got married, he spent two years travelling the country sowing his oats. You should sow your oats before you get too old.
by SimpleMindedTed June 10, 2008
Kevin - "Did you hear? I got 3 women pregnant last month?"
Bob - "Jeez. You were really sowing your oats"
Bob - "Jeez. You were really sowing your oats"
by KermitTheMotherF'ingFrog May 06, 2015