Top Definition
A person who is willing to go to great lengths to find exotic, and often, bizarre, foods to eat.
The guy who does "Bizarre Foods" on The Travel Channel is a real gastronaut!
by pentozali July 14, 2008
a person with unusual or eccentric, sometimes ghoulish, tastes.
He is a gastronaut. He eats worm-flavored foods.
by uttam maharjan November 17, 2011

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