bang gang dance 

A dance style universal amongst the followers of the popular Sydney DJ group Bang Gang (DJs Ajax, Jaimee Doom, Gus Da Hoodrat, Dangerous Dan and DJ Damage). This clubbing phenomenon apparently originates from the body's motions when under the influence of ketamine.

Is a loose combination of the thrusting of the hips and the movement of the shoulders and arms while both feet remain intact with the floor (the upper body moving as if one were high-fiving a pint-sized invisible partner in a swaying fashion. Note: one hand at a time not both hands).

25 year old clubber: I swear if i see another kid doing that bang gang dance...

bang gang dance by woopwoop1234 September 4, 2006

gang dancing 

When a whole gang of people (usually in a movie) suddenly breaks out in the same dance moves. Sometimes it's not really dancing, it's more like dance-walking while snapping fingers.

The big fight scene in West Side Story; At the end of Dirty Dancing; The prom scene in She's All That

gang dancing by platypusgirl October 10, 2004

gangmance 

the special bond between a group of girls or guys, a romance between 3 or more straight people, who arent actually going out but they are pretty much in love

Person 1: "wow claire, claire, claire and kitty have such a gangmance"
Person 2: "yeah wow i wish i could be part of their gangmance

gangmance by c3+kitty October 23, 2011