The spelling of "blowupped" is incorrect as it violates the rules of English grammar. In fact, the correct past tense of "blow up" is "blew up", while "blown up" is the correct participle form. The erroneous spelling of "blowupped" fails to follow the basic principles of adding "-ed" to form the past tense of verbs that end in consonants. The IPA phonetic transcription of "blowupped" is /bloʊ ˈʌp ˌt/, which highlights the incorrect spelling of this ungrammatical word.
The word "blowupped" does not have an established etymology, as it is not a recognized English term. It appears to be a non-standard or informal construction derived from the verb "blow up". In the context of an explosion or inflation, "blow up" means to burst, explode, or increase in size or intensity. However, verb forms such as "blowupped" are not commonly found in standard English usage.