Top Definition
a person or persons that have sex with trees. thy either drill hole or find a natural hole in the tree and fuck it.
though they are rare you can usually find at least one in every town.
what is that guy doin? way he's a knot knocker, no, not kiddin he's fuckin that tree
ayon kay chunkography ika-02 ng Pebrero, 2009
5 Words related to knot knocker

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