The official spelling of Sha bi is the Chinese pinyin Shàbī.
Sha bi in Chinese is "傻B".
Shàbī means Idiot in English.
"Shàbī" is a vulgar term, often used as an insult. It's commonly written as "傻B" or "SB" in Chinese based on its pronunciation. This word is considered vulgar, coarse, taboo, and a malicious insult. Using it in public is seen as extremely impolite.
Due to the nature of pinyin typing online, Sha bi can also be written as "煞笔," "煞逼," or "傻比" in Chinese.