When your emotions start getting deep and they start controlling your emotions and you feel so many emotions in one minute that is just makes you feel emotionless with too much emotion
Mooning gnome is an image, or collection of images, used on Facebook to warn users that a group is without an active admin and therefore has gone downhill and has no quality anymore. In the worst case the group is taken over by scammers and/or spammers. The image is placed ant there is no admin to remove it.
I don't trust this post about a student room, because there was a mooning gnome right above it, in the same group.