bucked

(verb) to strive with determination. Synonyms: buck. Example: "John is bucking for a promotion."

(verb) resist. Synonyms: buck, go against. Example: "Buck the trend."

(verb) move quickly and violently. Synonyms: tear, shoot, shoot down, charge, buck. Examples: "The car tore down the street." "He came charging into my office."

(verb) jump vertically, with legs stiff and back arched. Synonyms: buck, jerk, hitch. Example: "The yung filly bucked."