He and the prince had been old chums at college.
You'd do best to stay away from them, old chum.
Don't tell me she died for love of you, old chum!
From the easy familiarity between them they were clearly old chums.
She looked at her old chum and asked, "What is your title?"
By the end of the day we were all clowning together between takes like old chums.
"We could try to contact some more of Wright's old chums."
But now we talk about new legislation as though it were an old chum.
To name just one, he goes out to see the widow of an old chum.
Instead, he is to be reunited with his old chums.