Top Definition
Acid-on-acid reptilian effect or simply "acid on acid", happens when you squeeze a fresh piece of lemon into your mouth at the pick of your LSD trip in order to achieve a sudden reptilian state of consciousness sending you back to the Jurassic period for a short time.
- As a Paleontologist, I'm really curious to know how it'd feel being a dinosaur during the Jurassic period!
- Really?! So you definitely gotta go "acid on acid" at the next weekend's rave buddy!
by Spacewalk October 29, 2013

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