社牛

shè niúsheniu

(slang) extreme extrovert; socially fearless person (abbr. for 社交牛逼症[she4 jiao1 niu2 bi1 zheng4])

Characters in this word

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences