hamburger UK /ˈhæmˌbɜː.ɡə/US /ˈhæmˌbɜɹ.ɡɚ/noun 7verb 1forms 3 noun7 •A hot sandwich consisting of a patty of cooked ground beef or a meat substitute, in a sliced bun, usually also containing salad vegetables, condiments, or both. •Ingridents used in this type of sandwich. •The patty used in such a sandwich. •Ground beef, especially that intended to be made into hamburgers. •(US, informal) An animal or human, or the flesh thereof, that has been badly injured as a result of an accident or conflict.The truck hit the deer and turned it into hamburger.I'm going to make you into hamburger if you do that again. •Ellipsis of hamburger button. •(US, informal) Describing the shape of a rectangular piece of paper folded in half so that it forms a short rectangle. verb1 •(informal) To badly injure or damage (a fleshy part of the body).The men played baseball on coral diamonds that tore their shoes and clothes and hamburgered their hands. — 1944 formshamburgered · hamburgering · hamburgers