A habitual offender is a generic term used for any individual who has been convicted multiple times for committing the same offense, or for someone convicted for different types of crimes on multiple occasions.
These individuals are also sometimes referred to as "repeat offenders."
Justipedia explains Habitual Offender
Habitual offenders are perceived as threats to society. Many jurisdictions provide harsher punishments to habitual offenders. An example can be seen when one examines the three strikes law.