Texan contraction, mixing "didn't" and "doesn't", therefore covering both past and present tense jointly.
Yeah, I've been commutin' into Houston for five years, and I hate the drive, but it DUDN'T make no sense to pay rent for a house in town when I can live out-a-town for free.
by Flossy Salida April 15, 2004
Hillbilly way of saying "doesn't" as in Patrick Swayze's She's Like the Wind.
She leads me through moonlight / Only to burn me with the sun / She's taken my heart / But she dudn't know what she's done
by the "cooler" June 03, 2010