A milky white latex excreted by several species of wild lettuce, namely _Lactuca virosa,_ known as "lettuce opium" on account of its sedative and analgesic properties. As a latex, it greatly resembles opium, both in that it emerges a white fluid and gradually becomes a thick, solid resin.
"Hey, bro. Want some lactucarium?"
"Some what?"
"You want some lettuce opium?"
"Lettuce opium? What the hell is that?"
"I'll show you"
by RandomStraggler February 12, 2022
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