Board Thread:Fun and Games/@comment-26725931-20150927040215/@comment-24577221-20151203064146

Can you tell me what that M-like symbol is supposed to represent? I've seen it pop up at the top of my screen a couple of times, and it seemed to have something to do with game messages, but I haven't yet figured out how to display them. I'm assuming that it isn't supposed to be a heraldic "manche".