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2.
A jackass attitude, basically meaning an attitude that makes one seem overly rude or obnoxious.

Not to be confused with a "jack-it dude", which is a chronic masturbater.
You: Hey, what's up?
Me: Fuck off.
You: Woah, what's with your jackitude today?

Bob: I heard that Dave is a jack-it dude.
John: Me, too. I heard he masturbates twenty times a day.
by IceMetalPunk February 26, 2009
 
1.
Where one of your mates or work collegues has a "Jack Bastard Attitude", or where they act like a jack bastard continuously with the same attitude towards you.
"cor blimey Dave has a bit of a jackitude today."
by dannyboy1373 December 04, 2007