Pull Hard is an expression used to describe a physical action of exerting force in order to move something. TUG, YANK, HEAVE, and JERK are all words that can be used to describe this action. TUG is a three letter word meaning to pull or draw with a sudden movement. YANK is a four letter word meaning to pull or move suddenly and forcefully. HEAVE is a five letter word meaning to lift or pull with effort. Finally, JERK is a four letter word meaning to pull or move with a sudden, sharp motion.