"Blimpest" is a rather unusual spelling, as it's not commonly used in English. The word is pronounced as /ˈblɪmpɛst/ and is derived from the noun "blimp" - a type of non-rigid airship. The suffix "-est" is then added to form the superlative form of the word, meaning "most blimp-like". While not a commonly used word, the spelling of "blimpest" is phonetically accurate and can be easily understood by those familiar with English phonetics.