january joiner 

Someone who hogs the whole gym in January, but then breaking thier resolution by mid-Febuary

january joiner, in early january: I HAVE TO GET TO THE GYM PRONTO!!! NO TIME TO WASTE, THE TREADMILL IS CALLING!!!

january joiner, in mid-febuary: Fuck the gym, where's the chips?

january joiner by Kristin and Kristen Company November 8, 2006

double-jointed 

The ability to smoke two marijuana cigarettes at the same time. If done correctly, you won't remember you smoked either.

Johnny likes to show all the girls he is double-jointed. Go green!

double-jointed by Sean McInerney January 15, 2004

Joiner 

Someone who vomits because someone else just blew junks.

There is no way I can clean up Jens puke. I'm a joiner..... I'll spew!

Joiner by Luke Puke March 31, 2013

johned 

tryign to cut in line by yelling out the name john like you are looking for someone but really you are jsut cutting in line

ima john my way up to the front

damn man those kids just johned the whole line

johned by R()$$ April 24, 2004

Joned 

To be drunk, yet you dont have to drink to be joned

mate 1: Proper joned last night man
mate 2: But your straight edge though
mate 1: I know man!

Joned by jonedassbrother July 19, 2010

win joiner

a term used in online games describing a player joins or switches to the side that is winning
this is frowned upon in many gaming communities, especially when it gives the winning side a 2+ player advantage

kick the noob win joiner!

win joiner by uncle sam December 29, 2008

joiner 

Someone who unfortunately interrupts your personal bathroom break time by using the bathroom stall directly next to you, essentially joining you while you do your business.

My bathroom time is my personal time I would prefer not to be bothered by a joiner.

I use the restrooms on the 25th floor because there are too many joiners on 26.

joiner by Tyy Webb November 17, 2009