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1 definition by Spike-O

 
1.
A really big character in the book Gulliver's Travels. They are 60+ foot tall humans, and everything in their land is 10x bigger than things in the regular person world. It makes a guy jealous to think that these Brobdingnagians have 80 inch long penises, and boobs 60 inches across, etc.
Brobdingnagians are the only beings with bigger penises than I have.
by Spike-O February 13, 2004