Top Definition
A brown trail that leads typically from the anus to the knee along the inner leg brought on my loss of bowel control. Usually this occurs in the older population (70+).
Dude, my grandpa needs to quit wearing shorts, his rust stain left a mark on the couch again.
#ruststain #rusty #rudder spudders #ruddies #ruds
by Zaterion December 12, 2005
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