When a person engages in activities (sex, drugs or untypical behavior) frequently as if to try new things to gain experience. With sex it would be without
an attachment (
serious relationship) with the partners. Tends to mean prior to when a person settles down to a more conventional or
platonic lifestyle.
Wayne was out "sowing his oats" all weekend at
the boardwalk. Hopefully he will
get it out of his system
sooner than later.