It means "get fired"意思是被解雇。
According to the Dictionary of American Slang, it was from "drunk" in 1920s. It meant "drunk or intoxicated".通过美国俚语词典，该词是从20世纪20年代的“酒醉的”一词衍生而来的。它原来的意思包括“酒醉的或使喝醉的”。"Get canned" means to be dismissed from one's employment.加词的意思是指某人从某工作被解职或解雇。