glass balloon 

A synonym for heart, as it is fragile and broken easily. Used in a simile by Marina and the Diamonds in the song "Hermit the Frog."

"Well my heart just burst like a glass balloon"

"I was the wrong damn girl in the wrong damn room, I broke my glass balloon."

glass balloon by Evangeline of angels February 5, 2014

glass balloon 

Someone's extremely fragile heart

My heart just burst like a glass balloon

glass balloon by marmelhal January 28, 2016

glass balloon animal 

When your partner has give you multiple orgasms and you can't move. You don't have bones. You feel like air trapped in glass.

You made me into a glass balloon animal.

glass balloon animal by QueenFeyre December 21, 2021