If this phrase was encountered in a professional setting, it is likely a typo. If encountered in a social setting, it should be noted that "taco muncher" can be interpreted as insensitive or derogatory depending on the context in which it is used.
In the digital space, the specific combination of "Money Talks" and "Taco Muncher" is heavily linked to a 2007 episode of an adult television series featuring performers Rose Ryder and Jessie. money talks taco muncher better