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1.
(from the verb to penk)

Penking is the act of aimlessly fiddling, fooling around with no real purpose. One penks about in the shed, in the kitchen, wherever there is mindless activity to be undertaken. Children are often to be found penking.
A: What have you been doing today?

B: Nothing much, just penking about at home.
by distractedhousewife November 08, 2010