unstoppable force hitting an immovable object... or something like that anyway.
Well...I must say. That is a very nice Ambigram. It reminds me of the Death Metal band called 'nile'..(just kidding). I think it would be more appropriate of us , if we create ambigrams of more bigger words..making it a lot more challenging.That should be fun.
I've done Danube and Thames on paper, will post one tomorrow