A sucker punch is a street fighting slang term esignating a violent act, either one in which the person being attacked is caught completely off guard, especially by deception; or else an attack executed to disable another, targeting a place on the body that is not normally targeted in a "fair fight". One example is a blow on the back of the head, known as the rabbit punch. The face is mostly the target of this type of punch. One more hit is a quick slap to the back. This hit intends to make the back sting temporarily.