Noun
old fruit (plural old fruits)
(Britain, slang, dated, sometimes as a term of address) An old friend; an old chap or fellow.
He couldn't see why people made such a fuss about people eating their silly old fruit anyway, but life would be a lot less fun if they didn't. And there was never an apple, in Adam's opinion, that wasn't worth the trouble you got into for eating it. Terry Pratchett