It's almost that time of the year and one of those "we wish these were actually features" introduced to our favorite services. This year's April Fool's prank by the Gmail team is called the Mic Drop feature. It's basically a tool you want to use when you want to eject yourself from a long-winded email thread. To use it, simply press the Send + Mic Drop button and an accompanying GIF will show that you are done with this conversation and will not have anymore of it. You might not be speaking with these people in the future but at least your inbox is quieter for it. 

Source: Gmail Blog