gob (n.1)youdaoicibaDictYouDict[gob 词源字典]
"a mouthful, lump," late 14c., from gobbet.[gob etymology, gob origin, 英语词源]
gob (n.2)youdaoicibaDictYouDict
"mouth," 1540s, from Irish gob "mouth," and thus related to the other English noun gob (see gobbet). Gob-stopper "type of large hard candy" is from 1928.