grinding up

Verb

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) To skateboard on a surface or in a location.
   • He's grinding up the skate park.