社牛/社恐
shèniú/shèkǒng
Literally says
social cow / social fear
Actually means
a social superhero versus someone terrified of socializing
When to say it
A shèniú walks into a room of strangers and owns it in five minutes, a shèkǒng hides in the bathroom at parties. Everyone self-labels as one or the other. A great icebreaker word, use it to excuse yourself or to explain your friend.
Hear it in the wild
她是社牛，跟谁都能聊。
Tā shì shèniú, gēn shéi dōu néng liáo.
She's a social machine, she can talk to anyone.
我不是社牛，聚会先躲角落。
Wǒ búshì shèniú, jùhuì xiān duǒ jiǎoluò.
I'm no social butterfly, I hide in a corner at parties.