[cram] vb crammed ; cram.ming [ME crammen, fr. OE crammian; akin to ON kremja to squeeze] vt (bef. 12c) 1: to pack tight: jam "~ a suitcase with clothes"
2. a: to fill with food to satiety: stuff b: to eat voraciously: bolt "the child ~s her food"
3: to thrust in or as if in a rough or forceful manner "crammed the letters into his pocket"
4: to prepare hastily for an examination "~ the students for the test" ~ vi 1: to eat greedily or to satiety: stuff
2: to study hastily for an imminent examination -- cram.mer n
[2]cram n (1810) 1: a compressed multitude or crowd: crush
2: last-minute study for an examination