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Diarrhea contracted while traveling abroad—especially in Latin American countries—due to being unaccustomed to the local cuisine and quality of water. I was having a great time in Mexico, but I came down with awful turista for the whole second week of my trip. Make sure you only drink bottled water if you don't want to spend the whole time on the toilet with the turista.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. diarrhea; a case of diarrhea. (From Spanish.) Nobody ever died of the turistas—right away, anyway. Turistas can be very unpleasant.
See also: turista
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.