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If someone invited you to “lunch on the boat,” you’d probably be into it, right? Maybe they’re a good chef, and have a houseboat.

But be wary! “Lunching on the boat” actually means being high on PCP, according to a new opinion from the D.C. Court of Appeals, which is apparently way more up on the youth than City Desk.

Asked to decide whether to uphold Tyrone P. Fortune‘s conviction for attempting to rob his cousin, Erica Bernard, while high on PCP, the court detours into drug culture:

Ms. Bernard called Mr. Fortune’s mother and reported, “Your son just came over here lunching on the boat and just pulled a gun out on me.” The phrase “lunching on the boat” meant that Mr. Fortune was high on PCP.

Now you know.

Boat lunch photo by Shutterstock.