"Katsovitha" - Tzortzopoulos - Karavas
The father of John Poulos of Bondi, worked for many years in a cafe in Orange, NSW.
His family nickname was "Katsovitha" -"screw".
One version as to how the parachoukli derived was that an ancestor was constantly changing his life-plans and direction - and hence ended up achieving very little in life.
(Parachoukla are often very blunt and brutal - "Puraksina".)
The analogy was to the way a screw works - it can move in and out - to the left and to the right - and does not necessarily settle into one position - where it remains constantly.
Again, it would be interesting if one of his descendants could reveal to us the derivation of this nickname.