What is "bone of contention"

n. (context idiomatic English) Something that continues to be disputed; something on which no agreement can be reached

n. the subject of a dispute; "the real bone of contention, as you know, is money"

Bone of contention (or similar) may refer to:

• The Bone of Contention, an audio drama, a spin-off from Doctor Who
• Bones of Contention, story by Frank O'Connor