loupeuse

Louper is a French verb that is informal and mainly used in everyday spoken language.

Meaning:

1. To miss (an opportunity, an event, a chance):
   When someone "loupe" something, it means they fail to take advantage of it or fail to be present at it.
   Example: J'ai loupé le train — I missed the train.

2. To mess up / to screw up:
   It can also mean to make a mistake or fail badly at something.
   Example: Il a loupé son examen — He messed up/fails his exam.

Etymology:

• The verb louper comes from the slang word louper whose origin is not completely clear but is widely used in informal French.
• It is often considered synonymous with "rater," a more formal or neutral word for "to fail" or "to miss."

Synonyms:

• Rater — to miss, to fail
• Manquer — to miss, lack
• Gâcher (in the context of messing something up) — to spoil, to waste
• Bouder (in some contexts, but less common) — to fail or miss out, though this is more about sulking

Antonyms:

• Réussir — to succeed
• Attraper — to catch or grab (in the context of not missing something)
• Gagner — to win (opposite of messing up)

Summary:

"Louper" is an informal term predominantly meaning "to miss" or "to fail at" something. It is frequently interchangeable with "rater," though often used more colloquially.