Swagga jacka 

to steal or "jack" one's "swagga" or own unique style or personality that makes them hotter than your boring ass. Often occurs when one is jealous of a much sexier, popular, loved, fun & entertaining individual.

You design an original thing thats all your own & expresses part of who you are. Someone jacks that, claims it is theirs, & looks like a dumbass swagga jacka cause everyone knows it was yours first.

aka: You can jock my shit, but u can't rock my shit.

Swagga jacka by HOTTER_than_YOU February 8, 2009

Jack the Ripper 

A man who led an unsuccessful campaign of ending prostitution.

Jack the Ripper killed a total of eleven prostitutes.Most likely the prostitutes would have died of some sexual disease days later.

Jack the Ripper by d1y2r3n4 September 22, 2010

Janet Jackson 

person who turned superbowl 38 from one of the worst superbowls to one of the best.

when it came to talking about the superbowl people were only talking about Janet's tit and not the predictable, boring ass game

Janet Jackson by boy June 18, 2004

Jack-Off 

When A Guy Holds His Dick And Rubs His Hand Up And Down Getting Faster Until It Feels Good And He Sperms.

My Friend Doesn't Get Any Pussy So He Likes To Jack-Off.

Jack-Off by *JeNnA* May 4, 2004

Jumbo Jack 

A Jumbo Jack is the most popular burger coming out of Jack In the Box. It is a piece of hamburger meat with some bread, lettuce, tomato, mayo, and onions.

"Hey, mother. I brought you a Jumbo Jack."
"They decided to be funny again and leave out the meat.."

Jumbo Jack by Shadow Flare December 10, 2005

Union Jack 

Commonly used but incorrect name for the Union Flag of the United Kingdom.

It should only be called the Union Jack when being flown at sea.

When flying from a flagpole on land "Union Flag"

When flying from part of a boat at sea "Union Jack"

Yank tourist "Ooooh look, the Union Jack".

Infinitely more intelligent Brit "Pillock, it's called the Union Flag".

Union Jack by Lord Leverhulme December 8, 2006

Samuel Jackson Beer 

Featured on Chapelle's Show, Samuel Jackson Beer is a parody of Samuel Adams Beer commercials. The sketch features a loud, foul-mouthed Samuel L. Jackson (played by Dave Chapelle) promoting his own brand of beer while wearing Colonial-era clothing and puffing a cigarette.

"Samuel Jackson Beer! It'll get ya drunk! You'll be fucking fat girls in no time! You might even fight a nigger!"

Samuel Jackson Beer by You Can't Kill the Metal July 6, 2006