What does it mean to make mistakes on the Internet?

"Own goal" is an idiom for "own goal". "Own goal" comes from the English word OWN GOAL, which means "a ball that enters one's own goal." Hong Kong fans call it OWN GOAL based on the pronunciation of this word. "Own goal". "Putting an Oolong" comes from a folk legend in Guangdong:

During a long drought, people ask the green dragon to drop nectar to nourish all things. Who knows, before the green dragon arrives, the black dragon comes?

The appearance of the dragon brought disaster to mankind. "Own goal" is used in football matches to refer to

one's players accidentally hitting the ball into their own door. Instead of scoring, they lose points, and

The thrust of the folklore fits perfectly. ("