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Something that is very large. Tyrannosaurus rex mixed with a whale (not litterally. just showing that it is very large.) Also can be Tyranawhaleippo, which is the same thing only you add hippo.
"Omg she's like a tyranawhale!"

"Did you see that man? He was like a tyranawhaleippo!"
by Michaella! January 29, 2008
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