eiffel towerのようなどんな単語でも探してください。
A colloquial expression used in simile-like grammatical constructions to attribute particular force to the action of a verb. To state that something is happening "like nobody's business" suggests that it is happening with a particularly high degree of intensity.
It's raining outside like nobody's business!
Sam Sundquistによって 2005年06月17日(金)