If this question had been worded like this:
"Is it physically plausible that a lightning strike could make your sweat boil and cause your clothes to explode off your body"
would it still have been closed?
The problem with questions like this is that they're like asking can an elephant fly? The answer is yes if you're allowed to start at the top of a cliff and your definition of flight includes trajectories normal to the ground.
The point is that the question is not answerable from first principles in any useful way. You might say yes your clothes could be blown off if you were coated in a continuous film of sweat with a high enough conductivity and there was enough power in the lightning to vaporise all the sweat and your clothes were impermeable enough for a high pressure to be built up. But that doesn't tell us anything useful, hedged around as it is with numerous conditions.
The way to approach the question would be to examine actual lightning strikes to try and establish whether the phenomenon happened, and if so what factors were common to all occurrences. At this point it might be useful to approach a physicist and try to model the specific phenomena involved.
So I think Kyle's response is spot on. Post on the Skeptics SE in the hope someone can point you to the sort of evidence mentioned above. As it stands the question isn't appropriate here.