Might could.

source: 
COCA
Entry: 
1099
Example: 
Might could.
Modal 1: 
might
Modal 2: 
could
Gender: 
Male
Race/Ethnicity: 
Unknown
Age: 
unknown
Level of Education: 
Unknown
Home Community, Town, or State: 
Unknown
Location Collected: 
Fictional Story
Year: 
1990
Relation to Addressee: 
man to man
Medium: 
Written
Sentence Structure: 
1.0
Status: 
Naturalistic
Notes: 
Source: Offut, Chris. 1990. 'House Raising' in Ploughshares 16:2/3. (author is from Lexington, KY) Full Context: ground and fell. Old Abe cackled. The driver skidded sideways down the hill, front leg stretched, the other bent, both arms flailing for balance. He plunged to his knees in the rushing ditch. # " Look out, boys, " Old Abe said. " He's a-looking for a dance partner. " # The driver forced a grin as he slogged across the road. # " Name's Richard, " he said. " You the dozer man? " # " Ain't needing one, are you? " # " Might could. " # Old Abe wadded his shirttail and wrung it out. The men watched, waiting, as he leaned forward and twitched his head. Strands of shiny wet hair clung to his face in diagonal strips. He peeled one back and sucked its tip. # " Richard, " he said. " Same as Dick, ain't it. You the boss of this here outfit? " # Old Abe howled, his over-large clothes flapping like birch bark flayed by wind. The men