Top Definition
When someone is on Facebook, via mobile device. This can include but not be limited to: updating Fabo status, Facebook stalking, changing profile pic, etc. Does not include Twitter, Myspace, nor Xanga due to gayness of said sites.
Abbey was mad jackin' all during psych class so now her phone battery is low.
by jakeyjake8872 May 10, 2011
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.