This is when a young woman goes to art exhibits, auctions and cosmopolitan areas where she can expect to find wealthy older men. She, however, does not settle for just anyone, and is regularly seen browsing for men. This is slightly more classy than a gold-digger, as a gold digger often looks only for money, while a mantiquer looks for connections and "old money." A mantiquer has hopes of one day becoming a trophy wife.
Eww-did you see her flirting with that man-he must be twenty years older than her! She is such a gold digger!
No silly! She is just mantiquing. She is flirting with several older men. Besides, he had on a velvet dinner jacket with an ascot, he is definitely a mantique!