Weedbrain

Somebody who's past use of weed has affected the way their brain functions in a detrimental way often resulting in "weedbrain" moments where they will often spout nonsense for an extended duration of time until ultimately throwing a fit when realizing their wrong

Aaron: "Yeah, I drink on occasion."
Jacob: "Bro, alcohol is way worse than weed."
Aaron: "What, stop being a weedbrain bro."