1. mix socially, especially with those of higher social status:informal"a select few who hobnob with the biggest celebrities the country has to offer"
Word Originearly 19th century (in the sense ‘drink together’): from archaic hob or nob, hob and nob, probably meaning ‘give and take’, used by two people drinking to each other's health, from dialect hab nab ‘have or not have’.
