Mha random letter

after trick or treating and partying you come back to your dorm to see a letter on your bed written: "dear all trick or treaters im coming back for that ass I'd I ain't that butt last year his year is getting smashed I ain't gonna be in no griddy costume that shit is hard to run in I be in a track suit and we really gonna get this fun in" you: wtf what that mean!? is it a stranger or one of your friends?