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Something so huge, it needs to blend words. usually describes titas or other genitalia
christ on a cracker, that lump on your sack is gigantinormous, you should get that checked out.
by god of all things bimbly May 12, 2004
Stupidly huge, i.e. Gigantically enormous
My penis is Gigantinormous
by Ninjamark September 07, 2003