Do you know the meaning of "in common parlay"?

Question

“ We vigorously oppose bail, your honor.”
“ On what grounds?” asks the judge.
“The prosecutor fights a smile. “ In common parlay- the kid’s stole more damn chain than he can swim with. We’re afraid he’ll go down with it and we’ll never see him again!”

Answer 1

Short for "In common parlance" -- meaning, "I'm going to use a common analogy or saying, but don't take it literally".