rust up


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rust up

v.
1. To become thoroughly corroded: The walls of the old ship had rusted up.
2. To become immobile or stuck due to corrosion: The bolts have rusted up; I can't remove them.
3. To cause something to be thoroughly corroded: Don't use these chemicals; they will rust up the tank. Exposure to salt rusted the fender up.
See also: rust, up