<p style="background-color:#D9D9D9; padding:4px; margin:-4px; font-weight:bold; font-size:200%; color:white; text-shadow:1px 1px black, 1px 0px black, 1px -1px black, 0px 1px black, 0px -1px black, -1px 1px black, -1px 0px black, -1px -1px black">Nope</p>
<tn>なし (nashi; "to not exist"), much like its counterpart あり (ari), can be used casually to call something not acceptable. It also is used prominently in the Onimai OP's lyrics, though in that case it refers to "something" in particular going missing, which is also how it's often used in other TSF media.</tn>