Moctezuma, was one of the last aztec kings, the one that received the spanish conquerors into de the aztec kingdom, leading to its demise.
Mexican food is very colorful and exotic, and its made with some ingridients that you can’t find nowhere else. Mexicans are used to it, but some foreigners can have some stomachal problems with spicy food and other ingredients they arent used to.
When someone that isnt from Mexico, eats something in mexico, and gets sick, we say he had “The revenge of Moctezuma”. Thats what this saying means, that someone got screwed by some mexican food.
Me duele el estomago. Creo que es la venganza de Moctezuma./ My stomach aches. I think its Moctezuma’s revenge.
I hope you have learned something new, about the spanish that real Mexicans talk on their everyday life.
If you want to improve your Spanish, I also give tutoring lessons on skype using this page that host many teachers from all over the world, and while I don’t really do grammar, I can help with conversation and doubts about the language. Also, if you are interested in any language besides spanish, there are teachers and tutors for any language there.