When it comes to finding synonyms for the phrase "drubs in to," there are numerous options available. To begin with, one might consider using words like "hammer," "beat," or "pound." All of these choices express a sense of force being applied in a repetitive or persistent manner. Other options include "thump," "bash," and "bludgeon," which all suggest a more violent form of impact. Alternatively, one might consider using words like "inculcate," "ingrain," or "impress upon," which convey a sense of something being repeatedly taught or reinforced. Ultimately, the choice of synonym will depend on the context in which it is being used and the specific connotations and nuances that are desired.