A more thorough explanation:

Definition: An obliterated corner is a survey corner that can only be located using evidence other than that put in place by the original surveyor. It is a point in a land description that cannot be reasonably determined from traces of the original marks or other acceptable evidence.

Example: Let's say a surveyor marked a corner of a property with a stone monument. Over time, the monument was destroyed or removed, and there is no other reliable evidence to determine the exact location of the corner. This would be considered an obliterated corner.

This term can also refer to a market manipulation tactic where a group of individuals acquire control over a commodity with the purpose of artificially enhancing the price. They do this by purchasing and selling the commodity, as well as options and futures, in a way that depresses the market price so that they can purchase the commodity at satisfactory prices and withhold it from the market for a time, thereby inflating its price.

Example: A group of investors buys up all the available coffee beans in the market, causing the price to rise. They then withhold the beans from the market for a period of time, causing the price to inflate even further. This is an example of an obliterated corner in the commodities market.

These examples illustrate how an obliterated corner can refer to both a surveying term and a market manipulation tactic.