rodersi il fegato bedeutet auf Englisch

eat one's heart out▼(feel overwhelming negative emotion)
verb
[UK: iːt wʌnz hɑːt ˈaʊt] [US: ˈiːt wʌnz ˈhɑːrt ˈaʊt]

fume [fumed, fuming, fumes]▼(to express or feel great anger)
verb
[UK: fjuːm] [US: ˈfjuːm]