1 definition by HuckyJ

Common street slang for one 5 mg Melatonin pill.

Named for the long-lasting, deep-sleep enducing affects that Melatonin possesses, combined with its appearance of what one may expect a dinosaur egg to look like.
"Hey Bec, can you throw me the Dino Eggs-- I'm ready for bed."
by HuckyJ March 3, 2016
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