disco-biscuit 

A Quaalude, Sopor, or Parest (methaqualone) tablet. It was coined in the mid-70's, before most people ever heard of Ecstasy. It is a hypnotic (sleeping pill) that was popular due to its side-effect of lowering sexual inhibition in females (it tended to make males somewhat impotent.) The term disco-biscuit (with a hyphen) shifted to refer to Ecstasy (and the hyphen was dropped) when methaqualone was made a Schedule I drug and withdrawn from the US market in 1984.

Give that girl a disco-biscuit and you're sure to get laid.

disco-biscuit by NotSteve September 18, 2006

Disco Biscuit 

Archaic - For us old timers who were around during the time of disco before MDMA, Disco Biscuits referred to qualuudes.

It's funny that the defination went from a downer to an upper.

How about giving me one of those disco biscuits before we head over to Studio 54?

Disco Biscuit by tai cheese June 1, 2009

disco biscuit 

An ecstacy pill. Variation's are biscuit and bikkie.

"My Disco biscuit hasn't started kicking yet, I'm keen to munch another biscuit, but I only have 1 bikkie left and I want to save that for later."

disco biscuit by Diego August 31, 2003

disco biscuit 

an alternative way of saying an ecstacy pill

" Hey man you wanna take some disco buscuits and roll at the rave?"

disco biscuit by Freak April 2, 2003

disco biscuit 

A slang term for MDMA. A nice little pill that can help you dance ALL night long.

The guy in the tigger suit is the one selling disco biscuits

disco biscuit by glittery rainbow sprinkles May 22, 2006

disco biscuit 

An electronic jam band originating in Philadelphia, Pa. The band was neither named after ecstasy nor was it named after what the term disco biscuit is slang for. The term disco biscuit is slang for a roofie, lude, or barbituate. It has NEVER been used by anyone as a term for ecstasy. Thank you. People often call The Disco Biscuits. The biscuits. Bisco is another term that encompasses the scene.

Bisco has gone down hill ever since 2001.
The biscuits blew up the electric factory last night.
The disco biscuits are a jam band like phish, but with an electronic vibe and more floyd and zappa influence.

disco biscuit by Big Bird the Bird September 13, 2005

Disco Biscuit 

Another name for Ecstacy

Guy 1: Hey man, you got any disco biscuits?
Guy 2: Naw, I'm all sold out. Sorry bro.

Disco Biscuit by jambo782 September 7, 2011