The Collaborative International Dictionary of English v.0.48:

Cram \Cram\, v. i.
   1. To eat greedily, and to satiety; to stuff.
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            Gluttony . . . .
            Crams, and blasphemes his feeder.     --Milton.
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   2. To make crude preparation for a special occasion, as an
      examination, by a hasty and extensive course of memorizing
      or study. [Colloq.]
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The Collaborative International Dictionary of English v.0.48:

Cram \Cram\, n.
   1. The act of cramming.
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   2. Information hastily memorized; as, a cram from an
      examination. [Colloq.]
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   3. (Weaving) A warp having more than two threads passing
      through each dent or split of the reed.
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The Collaborative International Dictionary of English v.0.48:

Cram \Cram\ (kr[a^]m), v. t. [imp. & p. p. Crammed (kr[a^]md);
   p. pr. & vb. n. Cramming.] [AS. crammian to cram; akin to
   Icel. kremja to squeeze, bruise, Sw. krama to press. Cf.
   Cramp.]
   1. To press, force, or drive, particularly in filling, or in
      thrusting one thing into another; to stuff; to crowd; to
      fill to superfluity; as, to cram anything into a basket;
      to cram a room with people.
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            Their storehouses crammed with grain. --Shak.
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            He will cram his brass down our throats. --Swift.
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   2. To fill with food to satiety; to stuff.
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            Children would be freer from disease if they were
            not crammed so much as they are by fond mothers.
                                                  --Locke.
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            Cram us with praise, and make us
            As fat as tame things.                --Shak.
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   3. To put hastily through an extensive course of memorizing
      or study, as in preparation for an examination; as, a
      pupil is crammed by his tutor.
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WordNet (r) 3.0 (2006):

cram
    v 1: crowd or pack to capacity; "the theater was jampacked"
         [syn: jam, jampack, ram, chock up, cram, wad]
    2: put something somewhere so that the space is completely
       filled; "cram books into the suitcase"
    3: study intensively, as before an exam; "I had to bone up on my
       Latin verbs before the final exam" [syn: cram, grind
       away, drum, bone up, swot, get up, mug up, swot
       up, bone]
    4: prepare (students) hastily for an impending exam