To melt and explode at the same time.
SteveBob meltploded until he was dead.
meltplode: define #2
To melt and explode at once
Stevebot meltploded until he died.
meltplode: define #3
v. to spontaneously change from a solid to a liquid.
Ack!! Timmy just meltploded! Now he’s just a puddle! A Timmy-Puddle! OMFG!!!