ぐうぐうfast (asleep), snoring or grumbling sound

空腹(くうふく)でお腹(なか)がグウグウ鳴(な)っています。

My stomach is grumbling loudly because I'm hungry. {fast (asleep), snoring or grumbling sound}

丸(まる)くなってグウグウ寝(ね)ている猫(ねこ)が可愛(かわい)いです。

The cat curled up and sleeping soundly is cute. {fast (asleep), snoring or grumbling sound}

父(ちち)がグウグウいびきをかいているせいで眠(ねむ)れません。

I can't sleep because my father is snoring loudly. {fast (asleep), snoring or grumbling sound}

空腹(くうふく)のあまりグウグウお腹(なか)が鳴(な)ってしまい、恥(は)ずかしかった。

I was so hungry that my stomach started grumbling loudly, which was embarrassing. {fast (asleep), snoring or grumbling sound}

グウグウと気持(きも)ちよさそうに寝(ね)ている人(ひと)を起(お)こすことは出来(でき)ません。

I cannot wake up someone who is fast asleep, snoring comfortably. {fast (asleep), snoring or grumbling sound}