Top Definition
This occurs when a person is so high on various substances such as heroine and pain killers that they begin to lean in a sleep-like state for different lengths of time and then continue what they were saying or doing as if no time had passed at all.
Last night i popped 3 vicodin and tried to watch Inception, I was so fucked up i was doing the fiend lean and missed half the movie!
by Sexii E December 11, 2010

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