Definitions

1. superlative adjective

most worthless or of poor quality

“This junkiest junkyard I’ve ever seen is a real eyesore.”

2. superlative adjective

most wasteful or extravagant

“She’s known for being the junkiest shopper, always buying unnecessary items.”

3. noun

a person who deals in or collects worthless or second-hand items

“He’s a junkiest and makes a living from selling old electronics online.”