References in classic literature ?
Voices were heard faintly halloaing in the direction of the two gigs; and though this reassured us for Joyce and Hunter, who were well to the eastward, it warned our party to be off.
As for Sir Henry and myself, we stood amazed; nor was our amazement lessened when we perceived the form of Good careering off in the direction of the mountains, apparently mounted on the back of a horse and halloaing wildly.