Goad
GOAD,noun A pointed instrument used to stimulate a beast to move faster.
GOAD, verb transitive To prick; to drive with a goad
1. To incite; to stimulate; to instigate; to urge forward, or to rouse by any thing pungent, severe, irritating or inflaming. He was goaded by sarcastic remarks or by abuse; goaded by desire or other passion.