Possibly the rarest of all Tsunamis. A Sharknami that originates from within a city.

Potential causes might be a vastly huge aquarium full of sharks that breaks, spilling it's contents in one giant wave down the high street.

(See Sharknami)
"Fuck me, another sharknami!!"
"No Andrew, this is London... it's an URBAN SHARKNAMI!!!"
"Run!"
by Nick Wade August 17, 2005
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