ALNAME OF A PERSONan unofficial title or name 绰号，诨名SYN nickname
Examples from the Corpus
sobriquet• His youngest son was known to Regency society by the sobriquet Poodle Byng.• Fortunately some of the neighbours intervened, and it was they who invented the sobriquet.• I became friendly with the woman in charge, a vast and haughty person who answered to the sobriquet Duchesse.• This sobriquet is a product of the sixteenth century.
Originsobriquet
(1600-1700)French“light blow under the chin, nickname”