DICT.TW Dictionary Taiwan

 grunt·ing /ˈgrəntɪŋ/ 名詞

 Grunt v. t. [imp. & p. p. Grunted; p. pr. & vb. n. Grunting.]  To make a deep, short noise, as a hog; to utter a short groan or a deep guttural sound.
 Who would fardels bear,
 To grunt and sweat under a weary life.   --Shak.
 Grunting ox Zool., the yak.

 grunting
      adj : making short inarticulate guttural sounds as of effort
            expended; "ferries grunting on the river"; "grunting
            boxers"