noun
Loanword from English 'junk', used for worthless items, clutter, or low-quality things. Common in compounds like ジャンクフード (junk food).
この部屋はジャンクでいっぱいだ。
This room is full of junk.
ジャンクフードばかり食べていると体に悪いよ。
Eating nothing but junk food is bad for your health.