Top Definition
is a grainual-like substance that is the final product of rusting and corosion together. For some unknown reason, animals eat cruthor and it makes them bleed profusely from their mouths for days or weeks. The final result is always death. Cruthor is labeled "worse than rabies".
"Man, your car is nearly rusted it two. It's probably almost cruthor by now.
by jtylerk90 April 19, 2009
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