1. Plural of didapper; small diving waterbirds, especially grebes or dabchicks.
Usage: chiefly British and regional; often used to refer to the little grebe or similar small diving birds

Examples

• The didappers dove beneath the surface of the pond in search of small fish.
• We spotted several didappers on the lake during our morning bird-watching expedition.
• The didappers are known for their ability to disappear underwater almost instantly.
• Local birdwatchers often gather to observe the didappers during breeding season.