"Fajitas" are Mexican tortillas usually filled at the table with freshly cooked meat, chiles, tomatoes and onions. "Ritas," slang for "Margaritas," are mixed Mexican tequila drinks.
Fajitas are a Mexican dish and "ritas" is short for "margarita, the tequila-based Mexican drink. There is a well-known restaurant called "Fajitas and 'Ritas" in Boston, MA.
