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In the 1960s, LSD-25 was lysergic acid diethylamide (on the mid-East Coast, anyway). AKA as "acid". Hallucinogenic, psychedelic drug. Usually just called "LSD".
Are you gonna drop LSD 25 this weekend? Yeah, I'm going to the LSD-25 church in Washington, DC! Its teachings are based on acid! Wow! What a rush!
by "Step off, George!" June 02, 2017
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