1 definition by JoeSee
When a person you start a relationship with morphs over time from a beautiful butterfly to a caterpillar.
Hey have you heard John started dating this hottie name Mary. Oh give it a little time, she let herself go and she won't be anything like she is now. She's the kind that will have the Caterpillar Effect, just look at her mom.
by JoeSee November 13, 2011