A temporary employee who has beeen exploited for a long duration of time in the workplace, doing the same task as full-time employees, but not receiving company benefits.
A permateen is someone who still dresses like a teenager, gossips constantly, texts OMG to someone at least 20 times a day, and makes fun of other women for their appearance.
In men, it is a guy who relives his glory days of high school constantly, sleeps until noon every day, parties all night, spends too much time in the bathroom, and doesn't understand the concept of responsibility.