A battle where two or more friends compete to use the most instances of the words preposterous or preposterously.
"It is preposterously preposterous how preposterously preposterous this preposterously preposterous Preposterous Battle is, and it is preposterously preposterous when peoplesay preposterous, preposterously, or preposterously preposterous in a preposterously long sentence.
The best idea anyone has ever had in the universe. It is simply preposterous that you would assume this idea is not poggers. Something so incredibly terrible that it is poggers.