The word "ridiculousing" is not recognized by most dictionaries and is not commonly used in English. It is likely a non-standard or invented word. However, if we were to break down the spelling using IPA (International Phonetic Alphabet), it would be transcribed as /rɪˈdɪkjʊləsɪŋ/ with stress on the second syllable. This would suggest that the word is formed by adding the -ing suffix to the verb "ridiculous" to create a present participle form, indicating an ongoing action of making something or someone ridiculous.