When black people don't agree with something they say this. Equivalent to saying "Shit", but with swagger and soul. The way you talk after smoking a grape blunt while sipping a 40 of Colt 45.
Tyrone: "Yo dawg, let's go up to the pawn store and sell your PS 2"
JJ: "Sheeeeeet....them honkey jews up there never give us a good deal or even a solid quarter".
when something is so "lit" or "fire" that you make out a loud noise in the form of a SHEEEEEEEEESH. Usually used in combination with the :smiling_imp: (😈) and the :hot_face: (🥵) emojis.
Often said in a high pitched voice and lengthened for effect. You could say this in reaction to truly almost anything, but it is commonly used in reaction to something hype.
When I asked Aurelio if he wanted to split a 12 pack with me he said, "sheeeeeyit S A, that micro brew you have there sucks, dont you have any Pabst Blue Ribbon."