Own goal

An own goal occurs in sports when a player performs actions that result in the player scoring points for the opposition, such as when a football player puts a ball into their own net.

In some parts of the world, the term has become a metaphor for any action that backfires on the person or group undertaking it, sometimes even carrying a sense of "poetic justice". During The Troubles, for instance, it acquired a specific metaphorical meaning in Belfast, referring to an IED (improvised explosive device) that detonated prematurely, killing the person making or handling the bomb with the intent to harm others.

A player trying to throw a game might deliberately attempt an own goal. Such players run the risk of being sanctioned or banned from further play.