Reply-Call 

When you accidentally call every member of a large group chat on Microsoft Teams instead of the single person you tried to call.

Jennae was so embarrassed that she reply-called the entire team.

Reply-Call by Patton Freakin' Oswalt September 2, 2021

replyall 

There is email, there is spam and then there is replyall.
Replyall is internal spam.
Replyall is the slop that fills your inbox from co-workers needing reassurance about their contribution. Replyall is what happens when people don't think about who needs the information they are providing in response to a legitimate question or action.

I had to spend an hour deleting spam and replyall before I could start working this morning.

replyall by Xenofobe March 3, 2005

replywall

Kind of like replyall but on Facebook. A friend updates their status, a few others comment and then you wade in with a comment aimed not just at your friend but all the others who commented too.

Johnny: My girlfriend is mad with me...

Trey: Why?

Johnny: I posted on Facebook that I was struggling with a hangover. A few of the guys commented and then Lloyd does a replywall about that blonde girl in Hooters. Did it not cross his mind that my girlfriend might be a Facebook friend? Idiot!

replywall by Urban Englander November 13, 2009