Top Definition
F'jack: v; used to describe when someone is doing something.

F'jackn is the art of F'jackinating.
This word was first used in a Math class in The Science Academy, since then it has been widely spread.
You:Dude are you F'jackn?
Friend:Why yes I am.


You:Are you f***ing with me?
Friend:Naw, I'm just F'jackn with you.
by ryan blahahahahahaha March 08, 2009
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.