Top Definition
The act of tripping off of diphenhydramine hcl. A chemical found in sleeping pills and some allergy medication, a large enough dose acts as a deliriant, and can cause hallucinations, confusion, and one hell of a good time.
Last night I had an entire conversation with Abraham Lincoln before I realized he wasn't actually there. That's how you ride the hydra.
by Chessure April 22, 2012

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