Methylenedioxyamphetamine (MDA) is a psychedelic hallucinogenic drug and empathogen/entactogen of the phenethylamine family. It is chemically related to methylenedioxymethamphetamine (MDMA) but its effects differ somewhat. Instead of loved up feelings of euphroia, MDA produces a much more psychadelic experiance and gives a feeling of awe and wonder rather than straight out mashedness.

An exclamation made when your friends or family are teasing you to a point where you can't handle it anymore and a hissy fit is in order.

Derived from a YouTube user's famed outburst following Britney's lackluster performance at the 2007 VMA's.