cram past tense and past participle crammed, present participle cramming
1 [transitive always + adverb/preposition]
to force something into a small space
cram something into/onto etc something
Jill crammed her clothes into the bag.
A lot of information has been crammed into this book.
2 [intransitive always + adverb/preposition]
if a lot of people cram into a place or vehicle, they go into it so it is then full
We all crammed in and Pete started the car.
36,000 spectators crammed into the stadium to see the game.
3 [transitive] especially American English
if a lot of people cram a place, they fill it:
Thousands of people crammed the mall Sunday.
to prepare yourself for an examination by learning a lot of information quickly [= swot British English]
She's been cramming hard all week.
I have to cram for my chemistry test tomorrow.
cram something ↔ inphrasal verb
We crammed in as much sightseeing as possible during our stay in New York.