Dictionary 1. (n.) One who, or that which, rustles.2. (n.) A bovine animal that can care for itself in any circumstances; also, an alert, energetic, driving person. Thesaurus activist ball of fire beaver big-time operator bustler busy bee doer dynamo eager beaver enthusiast human dynamo hustler live wire man of action man of deeds militant new broom operator peeler political activist powerhouse rustler self-starter take-charge guy wheeler-dealer winner |