verb

• (transitive) To press, force, or drive, particularly in filling, or in thrusting one thing into another; to stuff; to fill to superfluity.
  "to cram fruit into a basket; to cram a room with people"
• (transitive) To fill with food to satiety; to stuff.
  "The boy crammed himself with cake"
• (transitive) To put hastily through an extensive course of memorizing or study, as in preparation for an examination.
  "A pupil is crammed by his tutor."
• (intransitive) To study hard; to swot.

noun

• (slang, dated) Information hastily memorized.
  "a cram from an examination"
• (weaving) A warp having more than two threads passing through each dent or split of the reed.
• (dated, British slang) A lie; a falsehood.
  "It is awful, an old un like that telling such crams as she do."
• (uncountable) A mathematical board game in which players take turns placing dominoes horizontally or vertically until no more can be placed, the loser being the player who cannot continue.