"Travesti-Mexico" is a combination of two terms. "Travesti" refers to transgender women who typically engage in sex work and adopt various roles within the adult industry, often performing in drag or as female impersonators. "Mexico" indicates that this particular content features performers of Mexican origin or content that takes place in Mexico. So, "Travesti-Mexico" describes a type of porn video featuring transgender women from Mexico, often dressed in women's clothing and engaging in sexual activities on camera. This tag is used by adult websites and audiences to search for specific types of content involving these particular performers and themes.