I might could do that

source: 
COCA
Entry: 
1040
Example: 
Allie knew enough students and wanted to meet someone a little older and more mature. Someone totally different. That's what Allie was looking forward to: meeting guys who didn't say things like, " I might could do that, " or " You seen my new custom Camaro? "
Modal 1: 
might
Modal 2: 
could
Gender: 
Unknown
Race/Ethnicity: 
Unknown
Age: 
unknown
Level of Education: 
Unknown
Home Community, Town, or State: 
Unknown
Location Collected: 
Fictional Novel
Year: 
2011
Relation to Addressee: 
omniscient narrator
Medium: 
Written
Sentence Structure: 
1.0
Notes: 
Source: Andrus, James. 2011. 'The Perfect Prey' New York: Kensington Pub. (pseudonym for detective working in the Southeast of the U.S.) Full Context: ... big city of Jacksonville, or at least Atlantic Beach. Her friends promised that they'd go to all the hot clubs in Jacksonville every night and that whatever happened wouldn't ever be spoken of inside the state of Mississippi. Last night the four young women had visited five different clubs. Most were crammed with students from across the Southeast. Allie knew enough students and wanted to meet someone a little older and more mature. Someone totally different. That's what Allie was looking forward to: meeting guys who didn't say things like, " I might could do that, " or " You seen my new custom Camaro? " She'd only had one serious boyfriend, Tommy McLaughlin, and he'd moved away to go to LSU, then a week later had pictures of a new girlfriend up on Facebook. She didn't even bother to call him to find out what had happened. Allie did hook up with one nice boy from Louisville who was in the counseling psychology program at USM. He had a sweet smile and good, tight body