Top Definition
Someone get addicted to their friend so much that they can't live without. they don't leave them alone and behave crazy when they try to avoid him/her. Sometimes it can be Violent.
Gracy : Hey! Where is Sam, how is he doing?
Peter : Russell is all over him. He follows him everywhere. I suspect, He is Friend-O-Maniac
by NaKuJa June 10, 2013

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