Sentence:  You have a twelve-year-old kid being told from the time he's like five years old that all <WSD>drugs</WSD> are bad, they're going to screw you up, don't try them. Just say no. Then they try pot. 
Meaning of the word marked with <WSD> tags:  A psychoactive substance, especially one which is illegal and addictive, ingested for recreational use, such as cocaine.