This is the scene from Bitterblue (Haven't heard of it? Why not, it's amazing! Read it. Seriously.) Where Teddy and Saf are trying to pick a nickname for Bitterblue
It's not really spoiler-y, I'm a bit more than half way through this AMAZING book and I can't get enough of it. really!
Teddy, Bitterblue, and Saf (c) Kristin Cashore