The scream signals that things are officially gone to hell. The pirate wails as clawed hands rip at his skin and grab hold of him from both sides. He'll be torn in two. Torn in two and eaten. Being eaten by one giant beast was terrible enough. This shall be far worse.
"Am I bloody cursed t'bein devoured? Bugger... Let go! Lemme go!"
He fights to pull himself free but only ends up hurt worse for it. Jack goes for his cutlass. Fighting to draw the blade.