songtaneity 

spontaneus outburst of group singing usally add-libbed to creat a chanting effect.

friend 1:off to the shop do you want anything mate.
friend 2:yeah get me anything.
friend 1: no tell me what you want.
both friends: no tell me what you want what you really really want................etc
thats songtaneity (in caberet)

songtaneity by browzychinkemo January 21, 2009

spontaneity 

the quality of being spontaneous and coming from natural feelings without constraint.

"the spontaneity of his laughter"

spontaneity by Robert Rucker October 30, 2007

Choreographed spontaneity

Used to describe the scene in musicals where people in the street know the words and tune to the song sung by any main character, and instantly know the dance routines including, but not limited to: jumping over barrels, swinging girls in the hair and juggling. This is all despite being total strangers.

This is all supposed to be spontaneous, of course, but naturally - it's actually choreographed

"Oliver! really made me laugh. What did you think of all the choreographed spontaneity?"

Choreographed spontaneity by Antihero May 1, 2005

Random Rambling and Spontaneity Disorder (RRSD) 

Random Rambling and Spontaneity Disorder, also known as RRSD, is a social disorder in which an infected person suffers from excessive oral diarrhea, confused thoughts and impulsive actions.

RRSD is highly contagious, and is transmitted through any form of communication. It affects mainly people between the ages of 10 to 30.

So far no cure has been found, but many studies are being performed to find the cure to this horribly awkward and uncomfortable disease.

The disease was discovered on May 29th, 2011, by two high school students in Portland, Oregon.

Joe: "Hi my name is Joe, what's your name, wow I like your shoes, is it getting hot in here? I think I'm wearing too many sweaters, do I look fat in this shirt, WOAH it is really hot in here!"

Doctor: "I do believe this man has Random Rambling and Spontaneity Disorder (RRSD)."

Random Rambling and Spontaneity Disorder (RRSD) by Dr. Koolkat October 24, 2011

Spontaneity 

When you have the urge to have sex in public with your partner so you fuck behind a bush or in between the clothing rack in Walmart

I had a moment of spontaneity when I banged my girlfriend in the Costco cart corral.

Spontaneity by Tbabydaddy October 13, 2019