maverick

n. 1 unorthodox or independent-minded person. 2 us unbranded calf or yearling. [maverick, name of an owner of unbranded cattle]

n. In the southwestern part of the united States, a bullock or heifer that has not been branded, and is unclaimed or wild; -- said to be from Maverick, the name of a cattle owner in Texas who neglected to brand his cattle.