Drop a Pillar on it

v - to attempt to solve a problem by repeating the solution to a previous problem despite the sweeping differences between the two problems. Implies that the solution being tried is obviously incorrect, but is being used in order to avoid having to think of new solutions.

Jason: I can't figure out how to defeat this boss.
Tom: Well, we had to push over a crumbling pillar onto the last one...
Fish: Let's drop a pillar on it!

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John: Dude, why are you spraying WD40 in your PC?
Dave: It worked on my bike.
John: Wow Dave, way to drop a pillar on it.