What is "chumminess"

Usage examples of "chumminess".

She was so kind, was Rita, such a good sport, that I daresay she would have given herself to any pathetic creature or fallacy, an old broken tree or a bereaved porcupine, out of sheer chumminess and compassion.

The corpse grinned at them in the dark with horrid chumminess, but with only half a face.

He was still loquacious, still given to flippancy, to clever self-effacements, to chumminess, but he seemed a more sober person than he had ever been.

That sort of chumminess with the enemy did not set well with the radicals in Washington.