Trashy has 3 different meanings across 1 category:
Adjective
cheap and inferior; of no value
"rubbishy newspapers that form almost the sole reading of the majority"
"trashy merchandise"
tastelessly showy
"a flash car"
"a flashy ring"
"garish colors"
"a gaudy costume"
"loud sport shirts"
"a meretricious yet stylish book"
"tawdry ornaments"
Like trash; having low quality, especially of books and films.
"The critic called the latest blockbusters a collection of trashy sequels that lacked any original storytelling."