There are several synonyms that can be used in place of the phrase "drubs into". Some options include "instills", "imparts", "inculcates", "teaches", "imbues", and "plants". These words all carry a similar meaning to "drubs into", which implies repeated and forceful teaching or instruction with the intention of imprinting the information into someone's mind. Using synonyms can add variety and depth to one's writing, as well as provide clarity and precision in communication. By selecting the right synonym, a writer can convey their message more effectively and engage their audience in a more meaningful way.