Unfortunately, and quite ironically, this "Wisdom" tattoo is misspelled. In Hebrew wisdom is "Chokhma", but this guy spelled it as "Tokhma" instead. I'd say this is a rather stupid mistake.
This is what went wrong:
The letters Tav and Het look a bit similar, but they're not the same, and definitely not interchangeable! Maybe our wise guy is simply in need of a new pair of reading glasses?
And to wrap things up, this is how you correctly write "Wisdom" in Hebrew:
