1. a saltwater crocodile
Usage: Australian informal
2. a ship that travels on saltwater, especially the Great Lakes
Usage: nautical informal

Examples

• The tour guide warned us about the dangerous saltie lurking in the river.
• That massive saltie can grow up to 20 feet long.
• The old saltie had been sailing the Great Lakes for decades.
• We watched the saltie navigate through the narrow channel.
• Local fishermen know to avoid areas where salties are common.
• The cargo saltie docked at the port early this morning.