Top Definition
Someone over the age of 40 that is on the same level as pro athletes. Conditioning, strength, physical appearance makes this person a force to be reckoned with. Normally associated with a shirtless nun-chuck wielding barefoot running marathon man.
Look at that Ninja Tarzan! the man with the white beard in track shorts, no shirt and is charging through the snow barefoot!
by Jake S & Shaun C April 26, 2011
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