In a small bowl, combine allspice, black pepper, oregano, crushed cloves, cinnamon, cumin, coriander and salt. Place sliced meat in a container and rub the seasoning all over. Set aside.
Heat a tablespoon of oil in a large skillet or cast iron pan set over medium heat. Once it shimmers, add the onion and chile slices, and cook for 4 to 5 minutes, until softened. Scrape into a bowl and return the skillet to the heat.
Raise heat to high, add the remaining tablespoon of oil. Once it shimmers, add the meat and sear, for 2 to 3 minutes until it starts to sweat on the surface, flip and sear for another minute. Pour in a splash of tequila, tilt to the flame, and let it catch fire being careful not to burn your hands. It will ignite for a few seconds until alcohol evaporates.
Add the lime and lemon juice, incorporate the cooked onion and jalapeño, and stir for a minute. Remove from the heat and serve. You can tuck into tacos with ripe avocado slices or guacamole.