1 definition by NeInCgKl

Top Definition
An old man who is no younger than the age of 87. Who also still has the sex drive of a young adolescent but on completion of sexual activities explodes with a powerfull dust splooge.
Look at that old man gawking at that 9 year old he is such a Birkenholz.
by NeInCgKl March 31, 2010

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