If I sat there any longer my heart would simply explode.

There was an office pool running on how long he had before his heart exploded.

Praying not, because if she actually did it, he knew his heart would explode.

Simon's eyes went wide, and his heart exploded into horrified pounding.

If the men receive the drug at this late stage, they say, their hearts may explode.

The girl's heart nearly exploded from the rush of fear and joy.

It seemed to me that my heart must explode in my chest.

When he'd heard the gunshot, he thought his heart would explode.

After the victim takes five steps, the heart explodes and he/she falls dead.

Twenty years later, if you are unluckier still, your heart will explode.