grind up

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grind up (third-person singular simple present grinds up, present participle grinding up, simple past and past participle ground 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, skateboarding) To skateboard on a surface or in a location.

   He's grinding up the skate park.