lollygag (v.)youdaoicibaDictYouDict[lollygag 词源字典]
"dawdle, dally," 1862, lallygag, American English, perhaps from dialectal lolly "tongue" + gag "deceive, trick." Related: Lollygagged; lollygagging.[lollygag etymology, lollygag origin, 英语词源]