Mobydoug's DC Dictionary
1. An unbranded range animal, especially a calf that has become separated from its mother, traditionally considered the property of the first person who brands it.
2. One that refuses to abide by the dictates of or resists adherence to a group; a dissenter.
Being independent in thought and action or exhibiting such independence: maverick politicians; a maverick decision.
3. (n.)a poseur patriot, a sorryassed mooseblasting douchebag fulla shrill lies and boilerplate bushshit, often seen shilling for a shapeshifting, melanomic, Cold War ghost......
4. (n.) a sadsack excuse for a motor vehicle manufactured by Ford Motors in the Nixon Era. As in: "The Maverick's leaking 10W40 and blowing blue smoke out 'er ass from Anchorage to Juneau. Won't be long before she throws a rod."
[Possibly after Samuel Augustus Maverick (1803-1870), American cattleman who left the calves in his herd unbranded .]