The highest level of disrespect a human can recieve.

when you got that sauce that's lookin extra fire.

When someone doesn't text you back in a appropriate amount of time but will still post shit on social media. He's not into you

When someone reads someone's text, but does not reply.

When you text, snapchat, dm, inbox, etc. someone and you wait a little for them to answer. And you see they opened or read the message and they don't answer for a while or even at all.

When you text someone, they see it, but they dont text back.

To read a massage (typically a text or on a messenger app that signals the sender when the message is seen or "read"), knowing the sender is aware that you've seen the message, and to not respond.

While the term was invented in 2016, the action was first perpetrated, pre-Internet, by Shepherd, who in on February 17, 1996, received a written message in person, and still refused to respond. If he ever responded is still unclear.