Race to the Finish

Some definitions:

implode |imˈplōd|: verbcollapse or cause to collapse violently inward :[ intrans. ] the windows on both sides of the room had imploded [ trans. ] : these forces would implode the pellet to a density 100 times higher than that of lead.explode |ikˈsplōd|: verbburst or shatter violently and noisily as a result of rapid combustion, decomposition, excessive internal pressure, or other process, typically scattering fragments widely : a large bomb exploded in a park.• [ trans. ] cause (a bomb) to do this : the USSR had not yet exploded its first nuclear weapon.• technical undergo a violent expansion in which much energy is released as a shock wave : lead ensures that gasoline burns rather than explodes.• (of a person) suddenly give expression to violent and uncontainable emotion, esp. anger : he can explode with anger | [withdirect speech ] “This is ludicrous!” she exploded.
The question is, which is more likely to happen to my brain first?  My vote is with explosion.  Though I think the dictionary has it wrong when it implies that explosion of a person can only be expressive.  Let my brain soon be a case study for Webster's.  At least it will do someone out there some good.