古鲁鲁

古魯魯
gǔlǔlǔ
(onom.) the sound of a rolling object

CEDICT

onomatopoeic

Entry Composition

1 古鲁 gǔlǔ guru (loanword)
2 鲁 lǔ
  1. (bound form) crass
  2. stupid
  3. rude
  4. (used to represent the sounds of "ru", "lu" etc in loanwords)