The term 'DRUG IN BREAKING BAD' can be summarized by the four-letter word 'METH'. Methamphetamine, commonly referred to as meth, is a highly addictive stimulant drug that was featured prominently in the popular television series Breaking Bad. The show follows the story of Walter White, a high school chemistry teacher who begins producing and selling meth in order to secure his family's financial future. Throughout the series, meth is used as a plot device to illustrate the consequences of drug use and addiction.