From Newsgroup: rec.puzzles

Historically and in older English slang, knark could also mean a hard-hearted or savage person, but this usage is now largely outdated.

A very knice kman told me this knarly, gnarly tale:

I was in Addis Abeba (beabi#be| beabeabeu) (which means "New Flower")
and some Smyrna merchant approached me and talked to me
in demotic French, and also in Amharic, beUbeYN++ (Qum!)

While the knarkish knark dealer knelt nervously near the knotted knapsack,
the knight knocked on the knoll, knowing the knotty knowledge
of the kingdom's knaves-cum-knives might soon knock the knickers off
any knucklehead knowingly navigating the knurled knoll.
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