1. present participle of 'hilloo': to shout or call out loudly, especially to attract attention or drive animals
Usage: informal; chiefly British

1. a loud shout or call; the act of hilloing
Usage: informal; chiefly British

Examples

• The farmer was hilloing across the field to call his dogs back.
• She heard hilloing coming from the woods and wondered who was there.
• The hunters were hilloing to signal each other during the hunt.
• He started hilloing when he saw his friend in the distance.
• The sound of hilloing echoed through the valley.