grind up

Verb

 * 1)  To reduce (something) to powder by grinding.
 * You have to grind up the cardamom pods.
 * 1)  To dance in a sexually suggestive manner close to another person.
 * He's been grinding up on her.
 * 1)  To wear down on (someone); to be extremely draining or stressful; to cause burnout.
 * This place will grind you up.
 * 1)  To skateboard on a surface or in a location.
 * He's grinding up the skate park.