A maverick is a rebel, someone who shows a lot of independence. A maverick on a motorcycle might blaze her own trail, traveling around the country and earning money by performing in rodeos.
Samuel A. Maverick owned a lot of cattle, and he let them roam around Texas without a brand, or identification mark, seared into their skins. Samuel was a maverick for going against the common practice of tracking his animals, and his last name became part of the English language as both an adjective and a noun in the 19th century. Someone who acts very independently is a maverick, and individual actions that stand out are maverick, as in "her maverick jumping style on the ice was both wild and delicate."