Quick winds escaping nostrils. A more subtle version of "lol". For use in text. "lol" is used a lot when people are smiling, but not laughing audibly. "qwen" more accurate in most cases and super easy to type.
A girl, normally, who is a basic bitch. She would probably be very provocative, promiscuous, wear the basic addidas clothing with nike cap and would overuse snapchat filters (mainly the flower crown and dog filter). The opposite of qwengers is pengers.
Example 1: 'Dat gyal isn't badders - she's qwengers! She gave my man uck for a benz in Tesco parking lot!'
Example 2: (Dad to his daughter) 'Please stop dressing like that darling. All the boys will think you are qwengers.'