A narrow neck keeps the bottle from being emptied in one swig.
More Irish Proverbs:
His face would hang him.Irish
Put silk on a goat, and it's still a goat.
Irish
Listen to the sound of the river and you will get a trout.
Irish
A man is often a bad adviser to himself and a good adviser to another.
Irish
If the knitter is weary the baby will have no new bonnet.
Irish
The windy day is not a day for scallops [thatching].
Irish