The name, sometimes translated loosely as "burnt mound" or "cooking place of the deer", refers to a distinctive type of site that appears in enormous numbers throughout Ireland, with estimates suggesting upwards of four thousand surviving examples. They are recognisable as horseshoe-shaped or kidney-shaped mounds of fire-cracked stone, typically found close to a water source, and dating mostly to the Bronze Age, roughly between 1500 and 500 BC.

The working theory for most of these sites is that they functioned as outdoor cooking facilities. A trough, often timber-lined, would be sunk into the ground and filled with water. Stones were heated in a nearby fire and then dropped into the trough, bringing the water to a boil. The repeated heating and sudden cooling caused the stones to fracture and shatter, and the discarded fragments accumulated over time into the characteristic mound. Experiments carried out by archaeologists have shown the method is remarkably efficient, capable of boiling water within thirty minutes and cooking a leg of mutton in a few hours. Whether these sites were seasonal camps, communal gathering places, or something else entirely remains a matter of ongoing discussion. Some researchers have proposed uses ranging from textile processing to bathing, and it is likely that the category covers a range of activities across different periods and contexts. The example at Tiraninny sits within a part of Mayo that retains a quiet density of prehistoric material, though the specific circumstances of this particular mound, its dimensions, condition, and immediate surroundings, are not currently documented in the available record.