mousetrap

rotanloukku, hiirenloukku

ansapeli device Device for capturing or killing mice and other rodents.
puhekieltä A website designed to open another copy of itself when the user tries to close the webpage. Frequently used by advertisers and pornographers.
puhekieltä With attribute "better", a hypothetical new or improved product used in economic projections.

But what happens if they build a better mousetrap|build a better mousetrap?

He hoped to bring the rebels out of their trenches for a showdown battle somewhere south of the Wilderness, that gloomy expanse of scrub oaks and pines where Lee had mousetrapped Joe Hooker exactly a year earlier.