Bone Phone Edit Meaning

1.

A secret phone, typically a cheap prepaid one, used in a clandestine manner away from one's SO for the sole purpose of arranging booty calls from someone other than the SO. The purpose of the bone phone is to avoid detection from the SO looking at your phone bill.

Dave: Is that Lloyd's new phone? What a loser -- why didn't he get an iPhone instead of that cheap piece of shit?

Robert: He has an iPhone...that's just his bone phone. I think he's talking to your mom

See booty call, hook-up, fuck buddy, booty, slut

2.

When someone has your cock near their mouth you call it your "Bone Phone" and they are answering it for you.

While your down their can you answer my Bone Phone, it's calling.

See skin flute, bag pipe