A NYC woman had a meltdown after being rightfully called out for not wearing a mask inside, which caused her to start hawking up phlegm … and it’s all on video.

The incident recently went down in Astoria, Queens at a bagel shop called New York City Bagel Coffee House — and, apparently, one of the customers who was wearing a mask noticed this gal without one while coughing, not covering her mouth … and going mask-less.

The masked patron suggested to one of the staffers that they enforce a mandatory mask-on policy while inside the building — and after overhearing her complaint, this woman lost it.

You can see for yourself what exactly she does and how she starts to conduct herself — but here’s a hint … it’s a lot of childish name-calling and then straight up flagrant coughing. It’s crazy, ’cause once this woman turns around and sees she’s being recorded … she makes a face that basically says, “S***, I’ve been caught on camera acting like a jackass.”

She sure was, and not only that … people online are ID’ing her and finding out where she works, etc. The typical ‘Karen’ treatment if you will, only this is the COVID-19 edition.

But wait, there’s more … according to the woman who was coughed on, the employees didn’t do a damn thing and they STILL served this wacko … supposedly, not even checking on the victim or anything. That left the cough-ee furious and vowing never to return.

Good, word is … Brooklyn Bagel & Coffee Company has better grub anyhow.