noun
bib
BIB/bɪb/
A covering worn under the chin to protect clothing while eating.
The toddler wears a washable bib while eating tomato soup.

Etymology
Bibben meant “to drink.” The cloth’s name may refer to use while drinking or to soaking up spills, alternatives the source offers if the verb comes from Latin bibere.
In context
drooling in his bib how can you talk like this