What is "gufujo"

A gufujo, plural gufujoj (guf, eagle owl; ujo, country, container, den, nest), in Esperanto slang, is a non-alcoholic, non-smoking makeshift European café-type situation (extremely similar to a fika) that takes place in the evening or at night. Esperanto speakers meet at a location, either a rented space or someone's house, and enjoy live music or reading aloud while having tea, coffee, pastries etc. There may be payment with real money expected, as in a real café. It's supposed to be a calm affair, in direct contrast to the wild parties that other Esperanto speakers might be having elsewhere at the same time. The lighting is usually dim and candles are usually lit, which is the custom in European cafés in the evening. Gufujoj were originally intended for people who dislike crowd noise and partying.