" 

 Yeah, Silver seren doesn't explain what source exactly he has in mind when he says the ""topic"" is ""obviously notable"".  
 I see a few dozen of hits in Ninja-boom literature, where this term is always presented as an item in a list. This doesn't make it a ""topic"". At the very most, it makes for a wiktionary entry.  

 Silver seren, if this is your approach to ""research"" for writing articles, I am not surprised we do not have a ""Shinobi-iri"" page that is worth the space it takes on the server's harddisk.   "