hello Thalia - I can see where your guess comes from so wouldn't say random but will say not it.
WAI stands for What am I. I added that as a subtitle because I often do more Play on Words (PoW) where you might manipulate the word answer itself. Like my recent "riddle constructs" where one rhyme describes word A, the second rhyme word B and the third the answer AB. This one is straight what am I. Of course there are/could be plays on words within this riddle (kinda my thing) like unexpected meanings/double entendre, puns, homophones, etc.
yeah, I really liked her answer, too (always had a thing for juice). gotto just say no.