def.: estimating a woman's beauty based on her chest
When I read the definition of this word, I immediately thought of Barney from How I Met Your Mother. He is the quintessential colposinquanonia, as evidenced in this clip:
I was doubtful at first that this was a real word; however, Heal English listed its Greek origins and I verified the meaning of the Greek words. My friends, I do believe this is legit.