It
mean everything and nothing at the same time. It a noun,
verb, adjective, adverb, pronoun, and an entire
sentence.
It can be used in every situation.
Person
1: skibidy beep bop
Person 2: that's not a word
Person
1: your a skibidy beep bop
Person 2: that's still not a word
Person
1: don't skibidy beep bop me
Person 2: *sigh