cram
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verb (crams, cramming, crammed)
1. with object completely fill (a place or container) to the point that it appears to be overflowing:
〖～ A into B〗 A〈人･物〉をB〈物･場所など〉にぎっしり詰める, 押し込む (!しばしば受け身で; intoのほかにonto, inも使われる)
e.g. the ashtray by the bed was crammed with cigarette butts.
force (people or things) into a place or container that is or appears to be too small to contain them:
〈人が〉〈場所･乗り物など〉に詰めかける, 押し寄せる; «…で» 〈場所〉をいっぱいにする «with» (→ 分詞crammed)
e.g. it's amazing how you've managed to cram everyone in
e.g. figurative : he had crammed so much into his short life
e.g. he crammed the sandwiches into his mouth.
no object (of a number of people) enter a place or space that is or seems to be too small to accommodate all of them:
〈人が〉 【場所･乗り物などに】詰めかける, 押し寄せる «into» .
e.g. they all crammed into the car.
2. no object study intensively over a short period of time just before an examination:
｟くだけて｠ 【試験などに向けて】詰め込み勉強をする «for»
e.g. lectures were called off so students could cram for finals.
ORIGIN
Old English crammian, of Germanic origin; related to Dutch krammen ‘to cramp or clamp’.