This word comes from Oceania, the seventh continent in the world, which is a way for students to answer questions that they can't know in exams.
Related idioms
Fish in troubled waters [hún shuǐ mō yú]?
Interpretation: Also said to fish in troubled waters. Metaphor takes advantage of chaos to gain benefits.
Source: Lao She's "Four Generations under One Family, Doubt Ten": "If things are settled, he can go to fish in troubled waters at once, regardless of whether Shanghai will start a war."
Example: Ma Nancun's "Yanshan Night Talk: The Family of an Egg": "And he intends to send this picked egg to a lot of eggs laid by his neighbor hens to hatch together, with the obvious purpose of fishing in troubled waters."
When he first started to raise chickens, he realized that the Tahoe chickens were surprisingly small for their age, growing to the size of a fist and weighing only 20 grams, while other chickens we