Rogets II: The New Thesaurus, Third Edition. 1995.
cram
VERB:
1.Informal. To study or work hard, especially when pressed for time: Informal :bone (up), grind. Idioms: burn the midnight oil. SeeWORK. 2. To fill to excess by compressing or squeezing tightly: crowd, jam, load, mob, pack, stuff. Informal :jam-pack. SeeFULL, TIGHTEN.