1. n. working hard at one’s studies in hopes of a high grade. If all you’re here for is grade-grubbing, you’re going to miss a lot.
2. n. flattering a teacher in hopes of a higher grade. Some teachers don’t mind a lot of grade-grubbing.
3. mod. having to do with students who are only concerned with getting high grades. Two grade-grubbing seniors came in and begged me to change their grades.