I eat like a horse.

Finding a genuine rocking-horse shit is like finding a needle in a haystack.

Finding a genuine antique rocking horse is like finding rocking horse shit.

On your horse, amigo!

He beats a dead horse by constantly bringing up the same argument.

I have beaten a dead horse by trying to convince him to change his mind.

I saw a horse of a different colour at the fair.

She eats like a horse.

She is eating like a horse.

She has eaten like a horse all day.