Travexplosioneggeddonapocombustionyptureckonimmolationavalidation 

Absolutely obliterating something, then checking that it's been done.

Taking out an entire army, then making sure they're dead is Travexplosioneggeddonapocombustionyptureckonimmolationavalidation.
The word is also 69 letters long.

Travexplosioneggeddonapocombustionyptureckonimmolationavalidation by YimmyYohnson November 29, 2013