crammer

cram +‎ -er

crammer (plural crammers)

1. One who crams or stuffs.
   • 1959, A.M.A. Archives of Pathology, volume 68:

     The pigeon crammers of Paris took mouthfuls of grain and water and spat it into the mouth of a pigeon.

2. A book used for accelerated study in preparation for an examination.
3. A student who studies hard for an examination.
4. A teacher who aids such a student.
5. A school whose speciality is helping students to pass certain examinations.
6. (dated, British slang) A liar.
   • 1894, Talbot Baines Reed, Tom, Dick, and Harry, page 107:

     Look here; do you mean to call me a crammer?

7. (dated, British slang) A lie.
   • 1939, Frank Richards, The Magnet: Loder Looks for Trouble:

     I'm afraid he wouldn't mind telling crammers about it if he was questioned.

• (lie; liar; one who helps others to pass examinations): 1873, John Camden Hotten, The Slang Dictionary