amico per la pelle angolul

body louse [body lice]▼(parasitic insect Pediculus humanus corporis)
noun
[UK: ˈbɒ.di laʊs] [US: ˈbɑː.di ˈlaʊs]

bosom friend▼(very close friend)
noun
[UK: ˈbʊ.zəm ˈfrend] [US: ˈbʊ.zəm ˈfrend]

intimate [intimates]▼(very close friend)
noun
[UK: ˈɪn.tɪ.meɪt] [US: ˈɪn.tə.mət]