drum (something) into (one's) head(redirected from drummed it into their heads)
drum (something) into (one's) head
To educate one about something through intense and frequent repetition. The teacher tried drumming the material into their heads before the statewide exam, but he was still concerned they weren't getting it. You never listen to what I'm telling you! Do I have to drum it into your head, or what?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
drum (something) into one's head, to
To force an idea on someone by means of persistent repetition. This expression, used since the early nineteenth century, alludes to performing drumbeats over and over. John Stuart Mill used it in his Political Economy (1848): “This doctrine has been . . . tolerably effectively drummed into the public mind.”
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer