From Longman Dictionary of Contemporary Englishgrind something ↔ out phrasal verb1 MAKEto produce information, writing, music etc in such large amounts that it becomes boring SYN churn out Frank just keeps grinding out detective stories.2 written to say something in a rough, angry, or emotional way ‘You don’t love him, ’ he ground out. → grind→ See Verb table
Examples from the Corpus
grind out• You just grind them out at practice.• Willie dropped his cigarette and ground it out carefully under his boot.• You can have the stump removed by hiring some one to grind it out with a machine.• He flipped a cigarette to the sidewalk and ground it out with a quick turn of his heel.• Michael threw his cigarette on the slush-filled pavement and ground it out with his boot. 