Sowing one's wild oats is a phrase commonly used to describe the youthful indulgences of someone, usually a man, who is enjoying his freedom and experimenting with different experiences in life. However, there are various other synonyms for this phrase that convey a similar meaning. Some of these synonyms include "living it up," "being carefree," "enjoying life to the fullest," "running wild," "letting loose," "exploring," "adventuring," "seeking adventure," and "having a good time." These phrases all suggest a sense of spontaneity, freedom, and enjoyment of life, but all have slightly different connotations or nuances and can be used in various contexts.