Dic/ beat into

beat someone into (doing) something: to beat a person until the person agrees to do something or to assume a particular attitude.

• They had to beat John into submission before he gave up.
• Max threatened to beat Lefty into helping him rob the candy store.

beat something into someone: Fig. to use physical abuse to get someone to learn something; to work very hard to get someone to learn something.

• Do I have to beat this into your head?
• Why can't you learn? Why do I have to beat in this information?
• Can't you learn by yourself? Does someone have to beat it in?

beat into:

 1. To mix something with something else with a vigorous stirring motion.
 2. To batter someone or something into some state or condition.
 3. To force someone to do something, esp. through the use of physical violence.

• I beat the eggs into the milk and flour gently, so that the batter didn't get too stiff.
• The robbers beat their victim into submission.
• I didn't want to cooperate with those crooks, but they beat me into being the driver of the getaway car.

... McGraw-Hill Dictionary of American Idioms and Phrasal Verbs, The American Heritage