Top Definition
A level of psychosis that causes a person to change from nice and polite to rude, manipulative and deceptive.
I noticed that Sally was showing signs of JPS when she offered to help me with my homework and then later denied me that help.
by Wendy Chan August 24, 2005
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.