Lean: 17 references
Well you can't call a record Dirty Sprite without a fair share of lean references, now can you? The opening track is the most lean-filled cut on the record, with a hook that says, "I just took a piss and I seen codeine coming out / We got purple Activis, I thought it was a drought." For those who may not know, Activis is a leading brand in the promethazine codeine cough syrup that Future loves to make his dirty Sprites with.
"Slave Master" was another interesting track for the lean references, where Future ends the song by saying, "Long live A$AP Yams, I'm on that codeine right now." Yams struggled with a codeine addiction, and ended up dying from drug overdose, although it wasn't linked directly to lean. At any rate, it seems like Future might have missed the mark here to leave a positive message on the matter, and instead uses lean as a way of paying tribute to Yams.