Adjective:The state of being an immature, arrogant, prick. Verb: "To pull a jack" is to get way too "handsy" early on in a date. This then followed by a drawn out, idiotic grudge.
"Dude, he was SUCH a Jack last night!" or "OMG! He pulled a total jack on our FIRST date! I dumped him" "Is he still pulling a jack on you? It's been over a year."
By screwyoujack
The word Jack is a military term given to an individual who is in the words of Lieutenant Colonel Hewitt of the Australian Army "A bad bloke." The term Jack is given to someone who is not helping out his mates with tasks and generally being a shit cunt. If an individual is not helping his mates it is said he is "going jack on his mates." The word Jack is frequently combined with the term Cunt or Fuck to more deeply illustrate the individual's Jackness as well as for added insult. Thus if a mate is being exceedingly Jack he is be called a Jack Cunt or Jack Fuck.
Digger 1 "Oy mate help us out with cleaning the Mag 58" Digger 2 "Na mate i cant i gonna go have another darb." Digger 1 "Thats your twelvth darb this hour you are dead set the Jackest Cunt i know. Old Matey 1 "Oy you coming out on the piss tonight." Old Matey 2 "No i can't i am too tired." Old Matey 1 "You fucking Jack Cunt you didn't hit the piss last week either fucking Jack mate." Pte Johnny "hey you going to Sydney with the boys this weekend." Pte Jibbs "Yo man i cant i am trying to save money." Pte Johnny "Oy is your name Jack cause your a fucking Shit Cunt." Nardella "look at this cunt all jacked up on his own jack what a jack fuck."
By Ninja Mc Stealth Kill
Acronym for Just Another Confused Kaffir.
"Hey you JACK, I told you to cut the grass, not kill the grass"
By White Terror
Buck teeth looks like a drugo smokes durrys all day everyday
Let's go have a durry with jack
By John terry
A person with the name Jack usually has a sexually transmitted disease but is also really good at rapping. They also like to masturbate with vegetables.
Yo, did you here Jack's new rap about asparagus? It's dope!
By xxravioligodxx