Definitions
1.AdjectiveMischievous; tending to misbehave or act badly (especially of a child). .mw-parser-output .defdate{font-size:smaller}"Some naughty boys at school hid the teacher's lesson notes."
2.AdjectiveSexually provocative; now in weakened sense, risqué, cheeky."I bought some naughty lingerie for my honeymoon.; If I see you send another naughty email to your friends, you will be forbidden from using the computer!"
3.AdjectiveDecadent, had as indulgence, especially an unhealthy one.
4.AdjectiveEvil, wicked, morally reprehensible.
5.AdjectiveBad, worthless, substandard.
6.Verb(Can we verify this sense?) To perform sexual acts.