A lemonstine is neither a male or female, but an it. It is the co-founder and ruler of Lemifer Land, making it royal, so "it" becomes "itiss". Lemonstine is so ROYGBIV, and has divine powers. It often calls upon partner in crime Tremifer, or other mystical creatures living there such as the yetis, to help it.
Omg! I got accepted as a citizen to Lemifer Land! The royal itiss Lemonstine approved!
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.