tempesta in un bicchiere d'acqua significa in inglese

tempest in a teapot▼(big fuss made in a small context)
noun
[UK: ˈtem.pɪst ɪn ə ˈtiː.pɒt] [US: ˈtem.pəst ɪn ə ˈtiː.ˌpɑːt]