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1.
The color left in underwear, bed-linen or elsewhere, usually in a streak.
Do you want your peanut butter spread thick, or just buttstain-brown?

I like the color of that table, not as dark as walnut, not as light as maple, more of a buttstain-brown.
by buggy October 20, 2005

Words related to buttstain-brown

brown butt color rectal streak