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.
by Fiona McColl October 27, 2007
Get the mug
Get a joiner mug for your barber James.
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.
by Tyy Webb November 17, 2009
Get the mug
Get a joiner mug for your sister-in-law Riley.
A slang word for an person of Asian decent. First used in the seventys.
Joiners are the worst drivers.
by Bigokal May 31, 2007
Get the mug
Get a joiner mug for your brother-in-law Abdul.
someone who makes a habit of joining in on other peoples conversations.
person1: did you hear Stevo routed Sheela.
person2: really, how interesting, please tell me more.
person1: well i saw them hooking up and then...
retard, walks up to persons: "really? who was this?"
person1: fuck off you stupid joiner
person2: what a bender
by disclosemyname? October 22, 2007
Get the mug
Get a joiner mug for your sister Jovana.
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!
by BelmontSlang October 25, 2011
Get the mug
Get a Joinering mug for your brother Paul.
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!
by Luke Puke March 31, 2013
Get the mug
Get a Joiner mug for your mother-in-law Helena.
Term used to describe a stranger who tries to join your line at a club or tries to party with you and your friends.
Omg, did you see that girl? She totally was trying to pretend she was with us in the line. What a joiner!
by Pinkfarida September 06, 2010
Get the mug
Get a Joiner mug for your girlfriend Riley.