Speed is the street form of amphetamine, nearly identical to adderall. Speed may be confused with the more addictive substance, Methamphetamine}. SPEED IS NOT METH!
Dude, this fucking speed has kept me awake for three days straight!
by Fender7083 November 21, 2014
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Amphetamine or amphetamine salts. Not meth, you incorrigible fucknuts. Speed lacks a methyl group. Don't do meth.
John: I'm on speed right now.

Joe: You're on meth?!

John: No, I'm on SPEED, you incorrigible fucknut.
by Rihanyce November 18, 2011
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Distance divided by time.

Or Meth.
"Let's do speed so I can stay up all night and study for my finals!!11shift!"
by o revelation o April 29, 2008
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A movie about Dennis Hopper wanting to blow up a bus because he had too much amphetamines.
Homer Simpson: I saw this movie about this bus that had to SPEED around a city, keeping its SPEED over fifty, and if its SPEED dropped, it would explode! I think it was called "The Bus That Couldn't Slow Down."
by rustyshackleford August 01, 2007
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Common name for Amphetamine.
Made with pseudoephedrine and many household items such as draincleaner, lots of manufacturer's have been killed when their 'speed lab' blows up.
"Let's snort some speed."
by Diego August 25, 2003
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Another amazing drug to be on while having sex. Much better then being on extasy but has about the same effects. Sex is amazing, but having sex while your on speed is even more AMAZING!!!
"Dude i had sex with this chick last night and she was on speed and it was like a damn machine man... brurururur..."
by SBB May 10, 2005
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