This is a term for a transfer of a player in Football where the negotiations are very long and difficult.
This is in direct reference to the summer 2010 transfer of Nikica Jelavic from Rapid Vienna to Glasgow Rangers.
It was originally 'coined' by the RangersMedia member 'BlueJeff'.
The thread on in the RangersMedia had over 300,000 views from supporters -- and interested onlookers -- from all over the world.
This is transfer is becoming a Jelavic.