Top Definition
A 40 foot long whale penis that currently extends from Miami to Ontario.

Also, one who brings large waves of lag.
What is this horrible lag? UCHa must have arrived.
by nantinkspink August 02, 2008
1 more definition
Ucha - Hi, How are you? or Hiya, also spelled Acha
Used in the South of England, origins believed to be Romany or Hindi.
"Ucha Mush, how's it going?"
by Jane Clarke July 26, 2006

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