He's a basement-dwelling, mouth-breathing troll.
They've spent whole careers playing mouth-breathing, monosyllabic, and violent men.
To attempt to stop mouth-breathing before providing abundant air-space through the nostrils is not only irrational, but cruel.
A mouth-breathing child is very apt to catch cold and as a consequence of the habit may become catarrhal or tubercular.
The most common reason for mouth-breathing is the growth of small lumps in the throat just behind the nose.
The harmfulness of mouth-breathing is explained in another chapter.
Nevertheless, mouth-breathing in all ages has been regarded as a bad habit, and with good reason.