Cypriot slang that defines someone as overthinking a specific scenario, to try and come up with a smart solution. In the process of this they will talk continuously, demanding everyone's attention until their desired outcome is met. More often than not, the solution will be completely inadequate for the scenario. This is similar to 'Gutter Rat Mentality'.
He tried winning the round but took a 'Stavmitch' approach and ended up failing miserably, costing the team the game.