meretricious
adj.
like or relating to a prostitute
meretricious relationships
adj.
tastelessly showy
a flash car|a flashy ring|garish colors|a gaudy costume|loud sport shirts|a meretricious yet stylish book|tawdry ornaments
adj.
based on pretense; deceptively pleasing
the gilded and perfumed but inwardly rotten nobility|meretricious praise|a meretricious argument