This expression first came from Hong Kong and Taiwan, and it had a certain derogatory meaning. Just like they say "instant noodles", you can't eat them until they are soaked; "Pick up girls", you can't get laid until you get laid. That's something. But now it's almost a neutral word. Bubble, generally refers to the man to please, close, talk and other ways to show good to women, in order to achieve the purpose of making friends, love and so on. Girls refer to women, and generally refer to young women.
Pick-up Artist (PUA) refers to a group of men who have systematically studied, practiced and constantly improved their pick-up skills. Around the world, these girls have their own underground communities and forums to share their skills. This culture originated in Toronto, Canada and Los Angeles, USA. In foreign countries, the famous girls are mysterious, Juggler, Style and so on. In China, PUAs such as Murphy, Tango PUA, bizu, qbeter, Handmade Noodles, Bad Fish, Jack and Huoying are active in different cities.
Literally, PUA refers to "strike up a conversation artist", but because of the changes and progress of bubble culture, the definition of PUA has been extended from simple hitting up a conversation to the whole process of hitting up girls, including: hitting up a conversation, attracting, establishing comfort and contact, and having intimate relationship.
The famous foreign books on picking up girls include "The Method of Charming Men", "Catching Girls", "The Method of Jugglers", "Dating Multiplication" and so on.