French word, meaning "end of the week". Cynics may say that looks like a word from another language, meaning a very similar thing, but it's not.
Je vais bientôt partir en week-end.
Only on days of the week that end in “y”… a saying that just actually means “every frikin’ day”.
Example #1
Question: Do you drink often?
Answer: Only on days of the week that end in “y”.
Example #2
Question: Do you use drugs?
Answer: Only on days of the week that end in “y”.