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.
A combination of two pre-existing phrases into a meaningless jumble of letters accomplishing nothing but drawing attention toward the tool user of the word.