Wrap the leftover rice in a quilt to keep it warm.
Tips
usage
焐 is colloquial and northern: it means warming a cold thing by pressing a hot thing against it, hands on a hot water bottle, a cold bed warmed by a person. It's about transferred body or contact heat, not cooking.
memory
Fire 火 plus 吾 ('I/me'): bring the warmth (fire) close to me, to snuggle something warm.
