The /r/LSD meme subculture stems from the popular Reddit community where users share experiences, art, and humor related to lysergic acid diethylamide. These memes typically revolve around the 'POV' of a person tripping, often making light of the intense visual distortions or profound, yet absurd, philosophical realizations that occur during a trip. Common tropes include staring at carpets, the 'Bicycle Day' celebration of Albert Hofmann, and the struggle to communicate with sober people. These memes serve as a way for the psychedelic community to bond over shared, often indescribable experiences through relatability and humor.