BACK n. 2 definitions
In human beings, the hinder part of the body, extending from the neck to the end of the spine; in other animals, that part of the body which corresponds most nearly to such part of a human being; as, the back of a horse, fish, or lobster.
BEAT v.
h or instill, by repetition. -- To beat off, to repel or drive back. -- To beat out, to extend by hammering. -- To beat out of a thing, to cause to relinquish it, or give it up. "Nor can anything beat their posterity out of it to this day." South. -- To beat the dust. (Man.) (a) To take in too little ground with th…