Definition: A "hosel" is part of the clubhead of golf clubs. Clubs are comprised of three basic parts: the clubhead, the shaft and the grip. The hosel is the part of the clubhead into which the shaft is fitted and secured. Think of the hosel as the "socket" that the shaft goes into. The entry point at the top of the hosel is often covered by a black, plastic ferrule, which simply serves to hide the connection point between shaft and clubhead.