Tum

The little one fell asleep on his mummy's tum.

Source: tatoeba (11763364)

Mr von Hagen, may I take occasion to enquire of your attire as you lay on your tum feeling rum in a hospital bed in Copenhagen?

Source: tatoeba (11895167)

For here am I without a crumb To satisfy a raging tum-- O what an oversight!" As he was indulging in these melancholy reflexions he came round a bend in the road, and discovered two people in the very act of having lunch.

Source: wiktionary

We left the telephone, walked up two small flights of stairs, and opened the front door as, believe it or not, the car with three policemen in it was just pulling up. I mention this amazing promptitude hoping that it will be a comfort to timorous souls whose tums turn over when things go bump in the night.

Source: wiktionary