January Joiner 

Someone who joins the gym in January as part of a New Year's resolution and by February is back to being a couch potato.

I can't get a treadmill until February because the January Joiners are all using them.

January Joiner by Brent Michael January 15, 2006

Shawn/Joiner 

Shawns/Joiners are typically insane, ridiculous individuals. They like playing Team Fortress 2, but only if by playing, you mean HAXING. They were some of the first people to use words like "Fail," in real life and they're the only people who can fit the word "Headshot" into any conversation. They also do very good impressions.
You will usually be able to recognize a Shawn/Joiner from across the room by his ability to tell of his latest TF2 adventures for at least 10 minutes at a time, in a variety of voices, primarily using the stereotypical "Spy" accent.

Shawn/Joiner
Ash: Did you hear that Shawn kid with a funny accent in the second row talking about "headshot"-ing people? Is he a Russian exchange student?

Alex: No, he's just talking about his latest conquests in TF2.

---------
Rode: Joiner, quit talking about your video games! I need to start class!

Joiner: Nein!

Shawn/Joiner by AJ^2 January 18, 2010

Joiney 

fly ass asian motherfucker.

joiney's myspace
myspace.com/jenwazhur23

Joiney by joiney23nguyen February 21, 2009

January Joiner 

People who spend the whole year eating like there is no tomorrow, however, they rationalize it by convincing themselves that they will join the gym after new years. Also known as CHUB CLUB. By mid-january they are nowhere to be found.

Gym rat to gym rat: Gosh I hate it right after New Year's when all the January Joiners come in and take up all the machines!

Later in February: Thank God the chub club is gone and we can use the precor during peak hours

January Joiner by XBevil January 20, 2006

january joiner 

a person who joins a gym as a new years resolution but may or may not continue going after the early months of the year.

Jake: Hey Bill want to go work out today?

Bill: No man, all those january joiners are hogging all the treadmills.

january joiner by decemberjoiner January 16, 2009

joiner 

Someone who gets involved with social groups; often indiscriminately.

Did you know Candis is in the Friends for Life group?

I'm not surprised, she's such a joiner.

joiner by Fiona McColl November 14, 2007

Joinering

A common word used to describe raping or taking advantage of a drunk girl.

At that party last night, there was a lot of Joinering going on!

Never let a guy get you alone in a room if you are drunk. He will most likely Joiner you!

Joinering by BelmontSlang October 25, 2011