a piece of cloth or plastic that you fasten around a baby’s neck to protect its clothes while it is eating 围嘴；围兜 - (especially British English)
a piece of cloth or plastic with a number or special colours on it that people wear on their chests and backs when they are taking part in a sport, so that people know who they are （运动员佩戴的）号码布，彩色身份标记
Word Originlate 16th cent.: probably from Latin bibere ‘to drink’.
Idioms
your best bib and tucker
- (humorous)
your best clothes that you only wear on special occasions （个人）最漂亮的衣服