Ecstasy is a slang term for an illegal drug that
similar to those of hallucinogens and stimulants. Ecstasy's scientific name is "MDMA," short for 3,4-methylenedioxymethamphetamine, a name that
as long as the all-night
dance club "raves" or "trances" where ecstasy is often used. That
's why MDMA is called
a "club drug."