Something that cool guys don't look at.

Something that gives Michael Bay a boner

Rapidly expanding heat and gas and/or plasma.

Usually caused by chemical or nuclear reactions, but can also have many other causes such as the release of pressurised gas.

An explosion may be defined as a loud noise accompanied by the sudden going-away of things from the places they were before.

BOOoOOOOOoOOOOOoOM

The process that generally entails taking large objects and turning them into many, many small objects.

What you say after giving someone a highfive as if your high five was so epic it bent the laws of reality and exploded with no negative consequence.