Reading But Not Replying 

RBNR is used in a chatzone where someone reads a message and doesn't reply.

Here's an example of someone Reading But Not Replying in a chat;

19:01 Dan: Hello? (READ 19:02)
19:03 Dan: I know your there:L (READ 19:03)
19:04 Dan: rbnr? (UNREAD)

Reading But Not Replying by SamMorganOnline August 5, 2012

burden of replying 

Like the burden of proof, but for instant messaging. When two people (usually acquaintances and not close friends) are messaging each other, the burden of replying is on the person who did not send the last reply. In other words, that person is the one who has to decide whether they want to continue the conversation or not, and if they do, they must be the one to send a reply or the conversation is over (unless the other person double texts).

Mary: When's the last time you talked to Joe?
Sue: Oh, I texted him this morning but he stopped replying so I think he was busy or something. I'm just going to wait until he texts first; the burden of replying is on him, after all.
Mary: True.

burden of replying by oatmeal__forbrains November 10, 2015

i suck at replying 

she does want to talk to you

She leaves you on open. You ask her why. She says, “sorry i suck at replying.” Just know she’s lying and just doesn’t want to talk to you.

i suck at replying by littlecol May 21, 2020

post-replying regret 

when you post a cringe reply and instantly regret it

You : "I shouldn’t had made that post ..."
Your friend : "Don't worry, it's just post-replying regret, it's temporary"

post-replying regret by Naerin January 3, 2021

selective replying 

When those annoying girls on snap choose what to reply to and just leave you on open for 48 hours otherwise

You: Bro why does she leave me on opened sometimes but sometimes she wants to reply

Bro: Honestly she’s just selective replying at this point.

selective replying by dbsweebo June 19, 2023

Spam-replying 

A rare running gag on Twitter/X where someone replies to much on a tweet/post. It mostly occurs in the object show Twitter/X community.

Spam-replying is annoying.

Spam-replying by Itz KittyPinkiez May 25, 2024

Relying 

A Big fat kid that sold FNCS and got carried by PB and Crisis

Relying is a booter

Relying by Jeffman43 November 12, 2020