Hitting someone back stiff after they hit you too hard. Wrestling's version of 'you mess with me, I mess with you.' If someone potatoes you with a legitimately hard shot, you're entitled to give them a receipt — an equally hard shot back. It's an unwritten code of conduct. Most receipts happen within the same match and the audience never knows. The boys in the back always know.
"He got potatoed with that forearm so he gave him a receipt — a knee strike that definitely wasn't pulled."