1. to coat (a wall or building) with a rough plaster or mortar mixture
Usage: chiefly Scottish and Northern English

1. a rough plaster or mortar coating applied to walls or buildings
Usage: chiefly Scottish and Northern English

Examples

• The cottage harls its exterior walls with a traditional lime mortar.
• The builder harls the new stone house to protect it from the weather.
• The harls on the old farmhouse had weathered to a soft grey color.
• They applied a fresh coat of harls to the cottage before winter.
• The rough harls gave the building a rustic appearance.