Tostilocos are a popular Mexican antojito that consists of Tostitos tortilla chips topped with cueritos, cucumber, jícama, lime juice, Valentina hot sauce, chamoy, Tajín chili powder, salt, and "Japanese peanuts" . The dish was first conceived in the late 1990s by street vendors in Mexico.
In the 21st century, Tostilocos are now commonly sold by street vendors, stadium vendors, and at Mexican juice bars in both Mexico and the Southwestern United States.