咕嚕

咕噜
gūlū
  1. grumbling, murmuring or grunting sound such as the sound of a person complaining
  2. gurgling, bubbling or swishing sound such as the sound of flowing water
  3. in a grunting manner
  4. in a gurgling, bubbling or swishing manner
  5. in a rolling or rumbling manner
  6. rumbling sound such as the sound of a rolling object
  7. to grumble, complain or grunt
  8. to gurgle, bubble or swish
  9. to rumble

Wiktionary

Homographs

咕嚕 gūlu
  1. (onom.) to rumble (of a stomach)
  2. to coo (of a dove)
  3. rumbling
  4. noisy drinking sound

Entry Composition

1 咕 gū (onom.) for the sound of a bird, an empty stomach etc
2 嚕 lū
  1. grumble
  2. chatter