Why Dabawenyos are soooooooo conyo?

Girl 1: Mag-go ka sa birthday niya?

Girl 2. Hindi. Gisabihan ko na siya na hindi ako mag-go.

Girl 1: Ano ka man uy? Gina-expect ko na baya siya na yang mag-go ka.

This is how a normal conversation goes between two Dabawenyo teenagers studying in a private school. Because non-Dabawenyos used to hear this kind of conversation, they can’t help saying, “Pamati ang mga taga-Davao. Sigeg Tagalog.”

But why do Dabawenyos speak Bisaya peppered with Tagalog, sprinkled with English, and marinated in FB-Twitter expressions?

There is a theory circulating among law students. The theory is that today's generations of Dabawenyos are descendants of the women in Villavicencio v.Lukban.

Who were those women? Why were they shipped to Davao secretly?