hamburger

1. 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. (countable, uncountable)
2. The patty used in such a sandwich. (countable, uncountable)
3. Ground beef, especially that intended to be made into hamburgers. (uncountable)
4. An animal or human, or the flesh thereof, that has been badly injured as a result of an accident or conflict. (US, colloquial, countable, uncountable) · The truck hit the deer and turned it into hamburger.· I'm going to make you into hamburger if you do that again.
5. Describing the shape of a rectangular piece of paper folded in half so that it forms a short rectangle. (US, countable, informal, uncountable)

Plural hamburgers