Толковый словарь английского языка Oxford English Reference - cram

v. (crammed, cramming) 1 tr. a fill to bursting; stuff (the room was crammed). b (foll. by in, into) force (a thing) into (cram the sandwiches into the bag). 2 tr. & intr. prepare for an examination by intensive study. 3 tr. (often foll. by with) feed (poultry etc.) to excess. 4 tr. & intr. colloq. eat greedily. Phrases and idioms cram-full as full as possible. cram in push in to bursting point (crammed in another five minutes' work). Etymology: OE crammian f. Gmc