Yo, if you lookin' to whip up some righteous lean, lemme break down the formula. First off, you gon' need some Actavis Prometh with codeine|purple drank|pro cough syrup. That's the heart of the operation. Don't go gettin' cheap stuff, cuz that shit ain't gonna be smooth. You also wanna grab some fanta, that's for the kick. And last but not least, a