when a man repeatedly pounds a womans vagina until her vagina lips become so loose that she can flap them like the wings of a butterfly.
hey man, last night i tore my girls cooch up so bad, i thought i experienced the butterfly effect. it was beautiful.
by GBTAN August 31, 2008

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Top Definition
The scientific theory that a single occurence, no matter how small, can change the course of the universe forever.
1. A man travelled back in time to prehistoric ages and stepped on a butterfly, and the universe was entirely different when he got back.

2. The flap of a butterfly's wings changed the air around it so much that a tornado broke out two continents away.
by Jonah Rowley November 06, 2004

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Theory that everything matters. That even the flutter of a butterfly's wings can cause a hurricane on the otherside of the world. If you change even the smallest of life's details, you completely change its outcome.
You should go see the movie butterfly effect.
by Professor July 16, 2004

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The theory that even the smallest step one takes in his/her life can change the course of said life immensely. The name of this theory came to be when a Chaos Theory stated: "It has been said that something as small as the flutter of a butterfly's wing can ultimately cause a typhoon halfway around the world."
Right vs. Left
Up vs. Down
Noon vs. Midnight

These choices, once chosen, are all examples of the Butterfly Effect and how one of these choices vs. another will affect one's life greatly.
by ButterflyEffect April 25, 2009

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The scientific theory that a single occurrence, no matter how small, can change the course of the universe forever.
In the popular game, Life Is Strange, the main character discovers she has the ability to rewind time and leads to enact the Butterfly Effect
by imTHATgirl June 04, 2015

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The act of orally stimulating a woman's mammary glands
Kane: I had Sydney over last night
Isaac: oh yeah what happened
Kane: not much just a cheeky bit of butterfly effect
by Taxidriver1976 November 03, 2016

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an action that redefines the future
when elijah come back and redefines equality through the ecology and economy hence butterfly effect
by Imanuel July 12, 2009

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1. A theroy stating that if one was to step on a butterfly some 65 million years ago, it would change the entire course of history in the present.

2. As a butterfly flaps its wings in one part of the world, a disaster is happening in another part of the world.
2. A butterfly is flying in Africa. A tsunami is devestating Japan
by Spork, Destroyer of Worlds January 03, 2004

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