grunting
1. [ adjective ] making short inarticulate guttural sounds as of effort expended
Examples:

"ferries grunting on the river" "grunting boxers"

Related terms: inarticulate
Similar spelling:   grunt
  grinding
  grounding
  Grondin
  groundling
  grant
  grenadine
  Grandison
  Grandi
  gruntle
  grunter
  Grunden
  granite
  Granato
  Granata
  grunt-hoot
  granitic