growl out
To speak so that one's voice has a low, guttural tone or quality. A noun or pronoun can be used between "growl" and "out." I bolted after the old man growled out a command to get out of his yard.
growl something out
to say something with a sound like growling or snarling. Jane growled a few words out. She growled out a few words and the gates opened for us.