DirtyNinja's definitions
A sexual act performed by a man for his partner. The man will shit on the face of his partner then wipe it off of the eyes in a horizontal direction with his penis. The partner will be left with a shit-mask resembling that of a ninja. Then, the man will insert his shit-covered cock into his partner's mouth when they are least expecting it, thus leading the partner into a ninja-like attack stance by the sudden insertion.
Steve begged me for a Dirty Ninja last night but I decided to use a nicely aged Alaskan pipeline on him instead.
by DirtyNinja April 14, 2008
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