声东击西

To make a feint to the east and attack in the west

《淮南子》

"To make a feint to the east while attacking in the west" literally means claiming to attack the east on the surface while actually attacking the west. It originates from ancient military tactics, referring to the practice of creating a false impression to confuse the enemy, concealing the true direction of attack, and thereby achieving victory by catching the opponent off guard. In its deeper meaning, it is a metaphor for using a bluff to divert the other party's attention so as to take action where the other party is off guard. This idiom is commonly used in military affairs, business competition, sports contests, everyday strategic maneuvering, and other scenarios, describing a flexible strategy and skill at misleading one's opponent. In terms of cultural background, it embodies the wisdom of ancient Chinese military strategists that "there can never be too much deception in war," and is in the same vein as the idea in The Art of War that "when able, feign inability." In emotional coloring, it is mostly neutral or commendatory, emphasizing cleverness rather than brute force, though it may carry a derogatory sense if used to deceive others. When using it, one should pay attention to the context and avoid confusing it with the literal meaning of "making a feint to the east while attacking in the west."

1. In a basketball game, he first pretended to drive right but suddenly changed direction to the left for a layup. This feint of making a feint to the east while attacking in the west caught the defenders off guard. (In this sentence, it refers to using a fake move to confuse the opponent while actually attacking from another direction.) 2. During promotions, businesses heavily advertise price cuts on Product A to attract customers into the store, while quietly pushing Product B, which has higher profits. This marketing strategy of making a feint to the east while attacking in the west is very common. (In this sentence, it refers to using surface-level advertising to divert customers' attention while actually achieving other sales goals.)