nag

A small horse; a pony.

An old, useless horse.

We used to lure the nags into the back of our truck with oats and sugar, then we'd drive back to town to this warehouse and inject the nags with small quantities of morphine I'd stolen.

A paramour.

Yon ribaudred nag of Egypt – Whom leprosy o'ertake!

To repeatedly remind or complain to (someone) in an annoying way, often about insignificant or unnecessary matters.

The room is never cleaned, so her mother nags and nags until she explodes with frustration and threatens to sell her to the lowest bidder.

Anyone would think that I nagged at you, Amanda! (From Amanda! by Robin Klein)

To bother with persistent thoughts or memories.

The notion that he forgot something nagged him the rest of the day.

I guess it happens all the time in crime stories where the detective suddenly remembers a bit of conversation that nags him in some way, then for some inexplicable reason, it's just right there in front of you, like a sign pointing 'here!

To bother or disturb persistently in any way.

But at night, around the uncertain edge of dreams, and when the wind nags, there are few whom an odd sound will not thrill

When a breeze comes up and nags the surface, it sparkles like a gemstone.

Someone or something that nags.

'That fellow is a nag.' 'Aye, the worst kind,' agreed Hamish, and then smiled, and at that smile, Miss Gunnery thawed even more.

When we see Wolfe struggling with many depictions of woman characters throughout the novel (the earlier ones being nags and white trash), we greatly admire the development of this living tribute to Aline Bernstein, a woman whom he ends up despising in his later life.

A repeated complaint or reminder.

And finally the biggest thank you of all to my partner Steven Winston for your love, enthusiasm, encouragement, support, humour, nags, and glasses of wine.

I turned it on Eileen and threw in a couple of my normal nags about her driving.

A persistent, bothersome thought or worry.

All that while there was a little nag going on at the back of his mind, which he strove to disregard. But it insisted on attention, and to get rid of it he put down his palette abruptly and got out his mustard-tin cash-box and counted his money.

During my lengthy aerobic strolls (which more or less served as a tool of meditation), that thought about “college” became a persistent nag.