Kroy Biermann and Kim Zolciak aren't letting Kroy's release from the Buffalo Bills get them down ... and they're throwing down some casino cash to prove it.
We got pics of the reality TV couple at Harrah's in Murphy, NC on Saturday ... one day after Kroy was cut. It appears he's cashing out, which is probably a good idea -- since his NFL paychecks might be coming to an end.
But then again, maybe not. Kroy says he's not retiring just yet, and sources close to the couple tell us .