>>1433426969 check'd
Then it'd be flesh taco, which would make it not suitable for vegans and vegetarians.
The Spanish name for penis taco is "taco de machito", and "machito" is a diminutive of the Spanish word "macho" (male). The Spanish name for testes taco is "taco de criadillas", "criadillas" being derived from the word "criar" (to raise).
A few other odd types of tacos that exist in Mexico are tacos de palomitas (popcorn tacos) and tacos de fideos (noodle tacos).