Definition of "rustler" [rus•tler]

• One who rustles; a cattle thief. (noun)
• A bovine animal that can care for itself in any circumstances. (noun)
• An alert, energetic, driving person. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "What he was thinking was that the moon was in the quarter -- what they called the rustler's moon."
• "What he was thinking was that the moon was in the quarter — what they called the rustler's moon."
• "It used to be a standard ploy — not just “liberal,” but “Whig” (originally “cut-throat cattle rustler from the wild Scottish borders”) and “Tory” (orig. “illiterate Papist peasant from the remotest bogs of Ireland”)."