(n.) One who crams; esp., one who prepares a pupil hastily for an examination, or a pupil who is thus prepared.
Example Sentences:
(1) Shortly after, Wheen was hauled back out of the counterculture and sent to a crammer to get to university.
(2) But then she took on Amis's wayward children (putting Martin through the crammer that sent him to Oxford and thence to his own success as a novelist); they moved to a large house outside London, Lemmons, and while Kingsley rose, wrote, had lunch, wrote again, drank, she found herself running a household of between eight and 12 people, including, after her brother and ailing mother moved in, "five men and one woman who didn't much like me".
Rammer
Definition:
(n.) One who, or that which, rams or drives.
(n.) An instrument for driving anything with force; as, a rammer for driving stones or piles, or for beating the earth to more solidity
(n.) A rod for forcing down the charge of a gun; a ramrod
(n.) An implement for pounding the sand of a mold to render it compact.