Definition

An acronym for 'don't fucking worry about that shit, yo'—basically the textual shrug of someone who's decided that panic is counterproductive. It's the digital equivalent of kicking back with a confidence that may or may not be justified.

Example Usage

You: 'We haven't started our group project yet.' Friend: 'DFWATSY, we got two weeks.'

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=DFWATSY&defid=7825655)