Related Clues:
- Choo-choo sound
- Noise from a toy train
- Sound from a train
- Railroad crossing sound
- Tug's signal
- Tugboat's horn sound
- 'NCIS' was spun off from it
- E-Type or F-Type, informally
- Burst of excess
- Engineer's signal
- Friendly greeting on the highway
- Pennywhistle sound
- Sound of a whistle
- XKE, for short
- Sporty wheels, briefly