olemus
tarbetu programmiosa,
mille võib kustutada või lühendada,
sealhulgas täidis millegi maskeerimiseks

Urban Dictionary:
useless code, code that can be deleted or rewritten in shorter syntax

näiteid
https://guidedhacking.com/threads/junk-code-generator-and-polymorphic-code-engine-guide.6720/

https://subscription.packtpub.com/book/security/9781789610789/7/ch07lvl1sec11/junk-code-insertion

https://www.mandiant.com/resources/blog/recognizing-avoiding-disassembled-junk