Emil de Leon was more or less warned by host Pat Sajak that he had little chance of winning the bonus round Wednesday, USmagazine.com reported.
"This looks tough to me," Sajak said. "You're a very good puzzle solver, but I don't know. You have 10 seconds. Keep talking. Maybe the right thing will pop out. Good luck."
As de Leon exulted after he got the right answer, Sajak patted him down, joking that he had to make sure he had not cheated. Sajak said he was "stunned."
A day later, Sajak still appeared amazed, tweeting Thursday: "What made last night's solve amazing was the generic category. Could have been 'new anything.' But 'baby buggy?!' Wow!"