The process that occurs when a flat-chested girl you once knew later blossoms into a large natural breasted woman.
Chris: Hey, you remember Amanda from middle school?
Gregg: You mean, the flat-chested one?
Chris: Yea, look at her now.
Gregg: Damn! She must've went through a breastamorphosis.
Gregg: You mean, the flat-chested one?
Chris: Yea, look at her now.
Gregg: Damn! She must've went through a breastamorphosis.
by GTab January 5, 2006