crammer

plural crammers

1. One who crams or stuffs.

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

   1959, A.M.A. Archives of Pathology, volume 68

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. BritishdatedslangA liar.

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

   1894, Talbot Baines Reed, Tom, Dick, and Harry, page 107

7. BritishdatedslangA lie.

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

   1939, Frank Richards, The Magnet: Loder Looks for Trouble