Junky is an alternative spelling.
from:
https://grammarist.com/spelling/junkie-junky/
"Junkie vs. junky
Junkie is a noun. It refers to (1) someone who is addicted to narcotics, and (2) one who has an insatiable interest in something. In reference to drug addicts, itโs disparaging and might be considered insensitive. Junky is an adjective. It means (1) worthy of being discarded, and (2) meaningless or unbelievable. Some dictionaries list junky as an alternative spelling of junkie in the sense synonymous with addict, but the words are usually kept separate in edited writing."