諾諾連聲 [诺诺连声]

Jyutping nok6 nok6 lin4 seng1
Pinyin nuò nuò lián shēng

Definitions (Wiktionary)
  1. phrase, idiomatic
    to mumble assent; to shout out "Aye! Aye!"
    (syn.) 喏喏連聲, 喏喏连声