Hi-hello friend Colloquial term for a casual acquaintance, fairly common in online forums. Most of the examples I've found seem to confirm my hunch this is primarily an Indian English expression (apart from the odd example from Africa).
Once I happened to meet a guy who was just a HI HELLO friend at that time, we used to come in same shifts, chit chat and just say BYE. (Tech Mahindra Confessions)
Now, we are not talking about a hi-hello friend, Vaks and I were like the best of the best friends. (Dil on the Rocks)
Not just a "hi, hello" friend. I want a friend that I can talk about deep things with as well as joke with. (SFWED Remember It Hurts Community)
Swedish girls are Racist! most Racist in the world and skin color and origin is a big factor for them even to be a hi-hello friend! (Yahoo Answers)
kasturi:'the company taken over by non other than your hi hello friend..' teejay:'what!!!!! Shocked ..is it robbie??? (India Forums)