"We're referring to the avocado, which in the Maya language is called 'oon'," Tuz said, wearing an embroidered guayabera shirt and white hat typical of the Yucatan region.
Like many members of younger generations, his teenage sisters have only a rudimentary knowledge of the language, Tuz told AFP.
"I realized that many young people stopped speaking the Maya language. However, they do speak it in their homes. Why? Because they're afraid. It's not that they feel shame. They're afraid of being discriminated against," he said.
Maya is spoken by 860,000 people, the majority in the Yucatan Peninsula, making it the second most widespread Indigenous language after Nahuatl, according to official figures.
Some 7.3 million Mexicans—6.1 percent of the population—speak an Indigenous language.
Tuz said that when he was a child, schools blocked the admission of students who only spoke Maya.
Although public education is now officially bilingual in the Yucatan, Indigenous language teaching is only just being introduced.