If you think you can read your teen’s texts to find out what they’re up to, think again. Code words are now a popular practice among young people, and if you don’t know the lingo, you’re out of luck. Here are some common phrases teens use that should put their parents on high alert. If you haven’t noticed, teenagers have a language all their own, but some of the words your teen uses could be code for sex, drugs, or other risky behaviors. “Brown sugar” is code for heroin, and “getting some blueberries” might actually refer to painkillers like Percocet.