beat
n.— «When officers came up empty, Ross told them Slater’s friend sold him a bag of weed that turned out to be “beat,” which is “street lingo for a counterfeit substance.”» —“The week in crime” by Chris Faraone Weekly Dig (Boston, Mass.) Mar. 23, 2005. (source: Double-Tongued Dictionary)
Further reading
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...
Have you ever googled your own name and found someone else who goes by the very same moniker? There’s a word for that: googleganger. Plus, the language of hobbyists and enthusiasts: If you’re a beekeeper, perhaps you call yourself a...