grind up

verb

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

   “You have to grind up the cardamom pods.”

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

   “He's been grinding up on her.”

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

   “This place will grind you up.”

4. To skateboard on a surface or in a location.

   “He's grinding up the skate park.”