AWAY to POOP.

Every letter change

1. AWAY → SWAY: change letter 1 from A to S.
2. SWAY → SLAY: change letter 2 from W to L.
3. SLAY → PLAY: change letter 1 from S to P.
4. PLAY → PLAP: change letter 4 from Y to P.
5. PLAP → PLOP: change letter 3 from A to O.
6. PLOP → POOP: change letter 2 from L to O.