What is ay chihuahua?

"Ay Chihuahua!" is an expression of surprise or frustration that is commonly used in Mexico and some Latin American countries. It is also the name of a famous Mexican restaurant chain with locations throughout the United States. The restaurant specializes in traditional Mexican cuisine, such as tacos, burritos, enchiladas, and fajitas, as well as margaritas and other cocktails. The name "Ay Chihuahua" is a play on words, as "Chihuahua" is a breed of small Mexican dog that is known for its high-pitched bark.