dug (n.)youdaoicibaDictYouDict[dug 词源字典]
"animal nipple," or, contemptuously, "the human female breast," 1520s, origin obscure, related to Swedish dagga, Danish dægge "to suckle."[dug etymology, dug origin, 英语词源]
dug (v.)youdaoicibaDictYouDict
past tense and past participle of dig (v.).