hrrkrkrkrwpfrbrbrbrlablblblblblwhitoo'ap
A word that very much exists, but does not quite have a meaning.
if you accept the definition that a word is some letters surrounded by a gap, then "Xnopyt", "aaaaaaajjjjjjjjj", and "hrrkrkrkrwpfrbrbrbrlablblblblblwhitoo'ap" are all words, despite being pretty much meaningless