Here's why:
* "Matigsalog" doesn't have any clear meaning in any major language. It's not a common Filipino word, nor is it found in other languages.
* "Davao" is a city in the Philippines, but the combination of "Matigsalog Davao" doesn't make sense in the context of the city or its culture.
Possible Explanations:
* Typographical Error: It's possible there was a misspelling. The actual word or phrase might be something entirely different.
* Local Slang: It could be a local slang term or an inside joke specific to a small group of people.
* Misinterpretation: There might be a misunderstanding or a misinterpretation of a different word or phrase.
To get a clear answer, you'd need to provide more context. If you can recall where you encountered this phrase or any other information about its origin, it might be easier to understand its meaning.