The term "junky" is typically used as a derogatory slang term to describe someone who abuses drugs, particularly heroin. The term can also refer to something that is considered worthless or of low quality.
Usage examples
My roommate's room is always messy and cluttered with old clothes, books, and random items. It's like a junky den in there.
I stumbled upon a junky antique shop the other day, filled with dusty old furniture, broken lamps, and chipped dishes.
I can't believe I ate that greasy, unhealthy fast food yesterday. I definitely indulged in some junky food.
The library's film collection includes a selection of junky B-movies from the 80s, perfect for a cheesy movie night.
Sarah's taste in music has always been a bit junky. She loves listening to pop songs with repetitive beats and shallow lyrics.
Beauty babe Chantel Jefferies and model / fellow YouTube star Alissa Violet agree that Fenty Beauty's Match Stix Trio is a brilliant new go - to for beauty junkies who are always on the go. (instyle.com)