A Jeopardy! hopeful made a snafu on last night's episode of the popular quiz show that he may not have even been aware of.

In the category "Punch," Alex Trebek asked contestants: "a blow to the back of the neck is named for this animal."

Contestant Mike answered "donkey punch." The correct answer was "rabbit punch."

Not sure what a donkey punch is? To read the VERY inappropriate definition, check out the listing on UrbanDictionary.com. WARNING: Some readers may be offended!