from where i'm from, lean = liquid codien i've done it once and that shit just makes you sleepy as a son of a bitch (not that i minded, it was a nice addition to 1/2 oz of weed, partly of which was rolled in a primo, 2 bars, and a fuck load of vodka) but i've also heard of it being refered to as wet, which is embalming fluid...that i will not do .