We might could make the case for that, but wouldn't we be overstating it?

source: 
Reed
Entry: 
1497
Example: 
We might could make the case for that, but wouldn't we be overstating it?
Modal 1: 
might
Modal 2: 
could
Gender: 
Male
Race/Ethnicity: 
White
Age: 
20s
Level of Education: 
Graduate school (Doctoral degree)
Home Community, Town, or State: 
TX (Unknown)
Location Collected: 
SC (Columbia)
Year: 
2011
Relation to Addressee: 
student to class
Medium: 
Spoken
Sentence Structure: 
1.1
Status: 
Naturalistic