"Date up" refers to the concept of dating someone who is considered to be on a higher social or economic level than oneself. There are many synonyms for "date up", including "date above one's station", "date someone who is out of one's league" or "date up a level". Other alternatives include "marry up" or "date someone upwardly mobile". These terms are often used in the context of romantic relationships, where individuals may seek partners with higher social or financial standing. However, it is important to remember that these labels can be derogatory and perpetuate harmful stereotypes. It is important to focus on qualities such as love and compatibility, rather than societal status.