A Hammerfist Strike (also called mejumeok naeryo chigi) is made by striking, usually downward, with the muscled portion of the fist. It is used, for example, in Taegeuk Oh Jang. When peforming poomsae, chambering for this strike is done by bringing the striking fist down beneath the off-hand armpit. Often this is done by starting it on the opposite waist and bringing it upward to the armpit.