noun: an insignificant student who is ridiculed as being affected or studying excessively
noun: hard monotonous routine work
verb: dance by rotating the pelvis in an erotically suggestive way, often while in contact with one's partner such that the dancers' legs are interlaced
verb: reduce to small pieces or particles by pounding or abrading
Example: "Grind the spices in a mortar"
verb: make a grating or grinding sound by rubbing together