1. of poor quality; cheap and poorly made
Usage: informal

1. a person who is addicted to drugs, especially heroin
Usage: slang
2. a person who has an excessive interest in or dependence on something
Usage: informal

Examples

• The furniture in the apartment was old and junky.
• She bought a junky car that broke down after a week.
• The recovering junky sought help at a rehabilitation center.
• He’s a real TV junky who watches shows all day.
• My sister is a chocolate junky and can’t resist sweets.
• The junky electronics from that store never last long.
• She’s become a news junky since the election started.