The Name Kuuipo popularity meaning and origin popular Sweetheart is a beautiful Polynesian term indicating poetic love and affection. The word Darling is made up of two words: "kuu" meaning "my" and "ipo" meaning "sweetheart" or "darling". So, when you call someone your Sweetheart, you are essentially expressing your deep fondness and dedication to them. It is a term that evokes feelings of intimacy and love, making it a amazing word to describe your special someone. Show your Sweetheart how much they mean to you by using this term of endearment to express the depth of your feelings for them.