off the chain
adj.— «Off the chain: An inmate term, not necessarily derisive, for officers acting slightly wacky or making wisecracks at inmates. As in, “Looks like the sergeant’s off the chain today.”» —“What the lingo means” by Adam C. Smith, Jo Becker St. Petersburg Times (Florida) Dec. 30, 1999. (source: Double-Tongued Dictionary)
Further reading
Andrea in West Palm Beach, Florida, recalls a little ditty that her father would recite to get her out of bed in the morning: When in the morning you throw moments away, you can’t make them up in the course of the day. Or you can hurry and...
If you take up texting and social media late in life, there’s a lot to learn! A twenty-something wants advice getting her dad up to speed on memes, Instagram, and animated images. Plus, when you’re on a long road trip, what do you call...