Courtesy Flush

The internet slang term “Courtesy Flush” refers to a metaphorical act of quickly ending or removing something undesirable or unnecessary. It implies taking prompt action to prevent further unwanted consequences or negative impacts.

Examples:

You should use a courtesy flush when you realize your online comment is offensive before it escalates into an unnecessary argument.
When you notice a pointless discussion taking place on a forum, it’s better to give it a courtesy flush and move on to more meaningful conversations.