A small horse; a pony; hence, any horse.
- To annoy by constant scolding, complaining, or urging.
- To torment persistently, as with anxiety or pain.
- To scold, complain, or find fault constantly: nagging at the children.
- To be a constant source of anxiety or annoyance: The half-remembered quotation nagged at my mind.
- One who nags.
- A horse, especially:
- An old or worn-out horse.
- Slang A racehorse.
- Archaic A small saddle horse or pony.