Also used as a response to something inaccurate.

What does duh mean in chat. ROFL means Rolling on floor laughing. A sarcastic response used when someone states the obvious. I would assume the Well duh was entirely due to the context of the last words spoken.

You Dont Say ie. My bad is an idiom which means roughly. Of course DUH.

STFU means Shut the freak up. ILY means I love you. A term used to sarcastically state that something is obvious.

That is obvious Type. The White Heart emoji is specifically used to show love for things colored or associated with white from white clothing to white-furred puppies to white sports cars. Dont Underestimate HimHer DUH.

Also used with uh. It is the same derogatory meaning as duh or doh. That was bad I did it and I take responsibility.

NVM means Never mind. Mean spirited response to someone stating the obvious or a well-known fact. Department of Untapped Hilarity.