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 3, 2004
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it is when you find out somone likes you and you start to like them back. bc they like u
grace- this guy likes me and i’m starting to like him back
eve- it’s the butterfly effect
by canadaaaaa February 18, 2019
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When a girl is giving a bj and she rapidly flicks her tongue all over the head, feels like buterflies are in her mouth flying all around your dick.

aka: HEAVEN!!!!!!!!!!!
I got hummer last night and she was using the butterfly effect...yeeeeeeeowwwww!!!!!
by TLITD January 5, 2004
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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 September 1, 2008
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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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A part of the chaos theory that states that one small change in a situation(expieramental noise) can drastically change the outcome of an event. Butterfly comes from the example of the flap of a butterfly's wing altering the atmosphere around it causing(or preventing) a major event somewhere else.

Also a movie with that Ashton Cootchie
Example 1: The Butterfly effect is a cool mathematical theory.

Example 2: The Butterfly effect was supposedly based on Chaos Theroy although there is no correlation whatsoever.
by Ryan July 27, 2004
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A small gesture or action in the present that can generate significant results in the future.
My client just referred their friend to me to help them find a home.

Sounds like The Butterfly Effect is in full motion!
by butterflyonthemove May 24, 2011
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