I am confused about a line from the movie Kingpin:
Ernie: All right, let's go. Thank you for the education, gentlemen. We've just received a PhD in stupidity. (to Roy) Doctor, shall we?
Roy: Give us a chance to win our money back.
Ernie: Are you crazy? (to the winning bowler) Padre, how much are you into us for already?
Winning man: $350.
Ernie to Roy: That's a landau roof and power steering down the drain. Could be in your pocket right now. Let's go.
I am confused because the scene is pretty clear that Roy and Ernie lost money to the other person. However, Merriam Webster says be into someone for means "to owe someone an amount of money". So if I am into him for $2,000, I owe him $2,000, correct? If that's correct, shouldn't Ernie say "How much are we into you for?"