Jewlover means: A derogatory slur used by antisemites to describe someone perceived as too supportive of or sympathetic toward Jewish people. The term carries no neutral usage and exists solely as a bigoted epithet.. It is generally derogatory or offensive; worth a quiet word about how it lands on the person being described. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.