Familiar Expression/slang: je suis crevé(e)
Pronunciation: /shui crevay/ (when a French native speaker says it, it sounds more like a “shui” than “je suis”)
Literal Translation: I am flat
Actual Meaning: I am knackered
Note: “Crevé” is usually used when speaking about a flat tyre or a balloon that is punctured.
“J’ai crevé” would usually refer to a flat tyre meaning “I have a flat tyre”