jaaack 

The use of "jaaack" implies that someone disagrees or is against a certain remark or written response. "Jaaack" can be replaced for the word 'fuuuck' when the term is used properly. "Jaaack" can have as many "a's" as you desire, as long as it has more than 2.

"Bro, I heard you stuck it in Rachael's stink mink the other night" Jaaack that mate, would never go there!

jaaack by billybaby June 16, 2016

Jaaack! :) 

Jaaack! :) Is an autistic character created by Lhiam Andrews-Bancroft during homework support sometime in November. His catch phrases include, Jack-off, Jack good at hitting, Jack at ping-pong, gooduh, badduh, Jack is moving like da roller coaster, uppuh

Jaaack! :) Is sooo funny.

Jaaack! :) by Ivaaa December 19, 2010

Jamackan 

Someone who adopts a fake Jamaican accent or appearance in an attempt to change their image or seem Carribean/mellow/hip/etc. This should not be confused with those who honestly accept such Jamaican qualities honestly, this term applies only to posers.

Snoop Dogg changing his name to Snoop Lion is such a Jamackan move, man.

or

Miss Cleo was born in LA, she's a total Jamackan.

Jamackan by Labtech41 January 11, 2013

Jaackbitch

A cute, Confident, pink haired blogger, fucking bitches and getting money is his prerogative.

Girl: that pink haired guy has a really amazing blog.
Boy: oh that must be jaackbitch

Jaackbitch by jiizzyjay August 1, 2011

Jamackan 

Noun: A fake Jamaican person or persons.

Verb: The action of talking in a fake and/or bad Jamaican accent.

Adjective: A term used to describe a very fake and/or bad Jamaican accent.

Possible sources:

1. MaximusBlack's Dyslexia

"Jeff I know you were trying to sound Reggae but you just went full-retard Jamackan."

Jamackan by Puffmax January 11, 2013

Jaack Maate 

The most fricking amazing YouTuber ever. He blogs regularly about anything and everything telling viewers his opinions and ripping the shit out of things that annoy him. Every video his viewers go on "A jaackmaate journey" as he discusses the topic of his choice. The 19 year old boy is extremely honest and is truly fucking hilarious.

Person1: Did you see Jaack Maates new video?
Person2: Yeah, he's a fucking legend.

Jaack Maate by Waluigiiii February 4, 2013

jajackamo 

An Exclamation said to warn someone that someone or something is coming towords them.

(after seeing a teacher come down the hallway when your class has locked the teacher in the closet and is totaly trashing the classroom) JAJACKAMO!

jajackamo by Steph December 31, 2003