its usless and junk for yourr body. not good for you. hence, the nickname.
A junk-food diet typically features a high proportion of processed and fried foods, refined sugars and cereals, processed meat, candy and chocolate and high-fatdairy products. Junk food is known as...
There is junk DNA or non-coding DNA. This DNA is the segment before the promoter of a different gene.
A Chinese fishing boat.
It puts junk in your body.