grind up

1. (transitive)To reduce (something) to powder by grinding.

   You have to grind up the cardamom pods.

2. (intransitive)To dance in a sexually suggestive manner close to another person.

   He's been grinding up on her.

3. (transitive)To wear down on (someone); to be extremely draining or stressful; to cause burnout.

   This place will grind you up.

4. (transitive)To skateboard on a surface or in a location.

   He's grinding up the skate park.

irregular · Lesson

• grind downтиранитиTo make something hard smaller and smoother by gradually rubbing off tiny bits; to wear down by grinding action.
• grind upTo reduce (something) to powder by grinding.
• grind outTo produce in a laborious and formulaic manner.