its just one of the infinite combinations of Italian blasphemyliterally meaning Jesus with a hood on. In the Italian language you can put whatever word combined with God (DIo) or Jesus ( Gesu)
mi e caduto l'iphone Gesu incappucciato / my Iphonefelt Gesu incappucciato
It's a typical expression used in Veneto that means "Son of Mary (jesus) is a fuckin asshole". You use it when you're angry, but not so much to say "Porca madonna".
E' finito il vino, Gesu bastardo!
The wine is finished, Gesu bastardo!
Gesu bastardo, mi è scappata la capra!
Gesu bastardo, my goat run away!
Is like saying that the son of god is a shit. Actually the meaning is (Shit Jesus or Jesus is shit). Maybe not one of the most used ones but i swear that is a good and proper way to esclamate when something bad happens. Examples.
Apri la finestra che c'è puzza Gesù merda. (Open the windows that the rooms stinks Jesus merda).
Stai zitto testa de cazzo che hai rotto lo schermo Gesù merda. (Shut up dickhead, you broke the screen Jesus merda).