What is the meaning of the word "mamma mia"?

Network vocabulary, emerging from Li Yi bar. The same as "touch da", "touch big", said kiss, usually as a suffix to a person's name, expressed love and affection for a person, often used in the intimate address of the idol, such as "XX么么哒 "is also a tone of voice. It belongs to the emerging network vocabulary.　Can also be understood as a kind of cute tone words. For example: the rats mu-mu-da, Pikachu mu-mu-da, Oni sauce mu-mu-da.