ofvakumaisext
ofvakumaisext is a term that appears to be a concatenation of several unrelated English words. "Of" is a common preposition. "Vakuma" is not a standard English word but might be a misspelling or a word from another language. "Is" is a verb. "Ext" is a common abbreviation for "extension" or "external." The combination of these elements does not form a recognized phrase or concept in standard English.
Without further context, it is impossible to determine the intended meaning or origin of "ofvakumaisext." It