bosom friends

bosom friend

1. One's close or closest friend; a friend one holds dear to one's heart. We grew up right next door to each other, so we have been bosom friends since we were kids.2. slang Lice. Ugh, I'm so itchy—I really hope my bosom friends aren't back.See also: bosom, friend

bosom friends

verbSee bosom chumsSee also: bosom, friend