Top Definition
when you finnish anal sex and your cock is covered in shit your make a dog lick it off.
i cant believe you done the rusty bone, allyn
by allyn preece September 22, 2009

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rusty bones is a slang word for uncool.
"dude your girlfriend made out with some random guy last night, that is totally rusty bones"
by peter bachman March 24, 2008

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a slang word for uncool.
sleepin with my girl friend is totally rusty bones.
by peter bachman March 24, 2008

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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