crammer

transitive verb crammed, cramming

1. to fill (a space) beyond normal capacity by pressing or squeezing; pack full or too full
2. to stuff; force: to cram papers into a drawer
3. to feed to excess; stuff with food
4. to prepare (a student) or review (a subject) for an examination in a hurried, intensive way

intransitive verb

1. to eat too much or too quickly
2. to study or review a subject in a hurried, intensive way, as in preparation for an examination

noun

1. a crowded condition; crush
2. the act of cramming for an examination