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n. synthetic drug. (see above)

also known as acid.

Can be taken orally, or through the eyes in the form of eye drops.
(no example for this)
LSD by The Light of Reason February 20, 2005
Related Words
LAKE SHORE DRIVE for all the chicagoians
LSD by TRACYZ July 11, 2004
Stands for long slow distance. What runners do to build endurance or train for a long distance event, like a marathon.
Runner #1: Man, track season finally ended, and all my tough interval workouts are over.

Runner #2: So you're done with speed?

Runner #1: Yup. And I'm ready for LSD.
LSD by Bombadier General June 9, 2008
Example: "Oh hi Fred!"
"Hey."
"I just tripped on LSD."
"Oh. Is she okay?"
Limited Slip Differential - a differential that is designed to work adequately when one of the wheels is slipping on the road.
Ken, where's the LSD? I have a race tonight!
LSD by FMRommel March 14, 2019
I have LSD.
lsd by Philosophical-Cat October 31, 2017