French leave means an unannounced, informal, or unauthorised departure, especially leaving without saying goodbye or asking permission. In poetry, it can suggest social awkwardness, rebellion, shame, secrecy, or emotional evasion. A speaker may take French leave from a party, a lover, a duty, or even from life itself. The idiom can be comic or poignant, depending on what is avoided. Students should note its cultural idiomatic history and use it carefully, since such national labels often reflect inherited stereotypes.

French leave traditionally means leaving without saying goodbye or without permission. Because the phrase carries old national stereotyping, students should understand its history while using it cautiously in modern writing. In poetry, it can describe stealth, social awkwardness, desertion, or graceful disappearance. It may be effective in historical or comic contexts, but a poet should be aware of its dated and culturally loaded character.