a person whose behaviour one disapproves of but who is nonetheless likeable or attractive

Flynn's screen reputation as a charming rogue

you old rogue!

an elephant or other large wild animal living apart from the herd and having savage or destructive tendencies

denoting a person or thing that behaves in an aberrant or unpredictable way, typically with damaging or dangerous effects

rogue elements among the ranks would be dealt with

a rogue cop who took the law into his own hands

he hacked into data and ran rogue programs

(of an elephant or other large wild animal) living apart from the herd and having savage or destructive tendencies

a rogue elephant

remove inferior or defective plants or seedlings from (a crop)

the sowing has to be rogued to remove aberrant seedlings