Top Definition
Uptight bitch that is a kill joy.
Stacy and I couldn't go to the movies because she was busy being such a jillkoy.
by Sasha Mazzucco July 13, 2008
8 Words related to Jillkoy

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.