grind

grind a lens; grind an axe

This corn grinds well.

She said, "How'd you like to waste some time?" / And I could not resist when I saw little Nikki grind

These enemies give lots of loot when killed, so many players fight them to grind for resources.

to grind an organ

Grinding lessons into students' heads does not motivate them to learn.

Eh, brah, let's go grind.

One evening, during evening work, Charlie was trying hard to do the verses which had been set to his form. […] Wilton, whose conduct had been more impertinent than that of any one else, said to Charlie—

“I say, young Evson, how you are grinding.”

“I have these verses to do,” said Charlie simply.

I need to pontificate on something that really grinds me. So here goes. I am sick and tired of lazy thinkers using the defense of “legislated morality.”