Stupid; moronic: If the dumb mouth-breathing bastards in the street only understood/ a quirky Canadian sport run by morons, played by barbarians, and watched by mouth-breathing, two-fisted slobbers (1970s+)
And let's be real: even a bad season of Arrested Development is worlds better than mouth-breathing shows like The Big Bang Theory.
Nevertheless, mouth-breathing in all ages has been regarded as a bad habit, and with good reason.
If the mouth-breathing is due to stoppage of the nostrils, this must be relieved.
Another cause of mouth-breathing is extreme swelling of the membrane which covers the turbinated bones of the nose.
It is more wholesome than mouth-breathing, and it refreshes the head more.
mouth-breathing is not simply a bad habit, a careless trick on the part of the child.
When both nostrils are closed the nose becomes thin and pointed and mouth-breathing results.
A mouth-breathing child is very apt to catch cold and as a consequence of the habit may become catarrhal or tubercular.