In reply to johncoxmysteriously:
I meant to reply to this soon after your OP but my PC pretended to have lost its WiFi connection and by the time it was sorted, my mind was elsewhere.
Anyway.
I bet it is related to Sirtaki dancing (think "Zorba the Greek" theme music, three men side by side, arms over each others' shoulders, doing those funny little gentle side kick dance moves)