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This occurs when you take a nasty shit and have to wipe excessively. Small pieces of shit paper get lodged in your ass hair and these become rolled up like a cuban cigar and are generally a nice yellowish brown color; thus a filthy cuban!
Man, I have a horible case of monkey butt; I have a couple of filthy cubans lodged in my ass.
by jakesony December 02, 2007