quacky

With progressive prostration (which is more marked in young infants) and with a tone to the cry which is a sort of a thin, crowing, quacky sound, points to the existence of retropharyngeal lymphadenitis.

The Doctor says that some of the quackiest of the quacks are in the army.

After the first hoeing of a quacky crop, it is often well to go over it lightly in the middle of a hot day, just skimming the surface of the soil, and cutting off the young grass.