Her answer, hilariously accompanied by a little dance, left her family stunned. Family Feud Canada's host, Gerry Dee, called on Eve and Logan White to represent their respective families in the single question face-off.
The restaurant made headlines past year with the introduction of its very-in-demand chicken sandwich, which caused long lines outside its locations, and even fights - at least one of them fatal.
The audience reaction was a mix of groans and uproarious laughter; the rest of the Dubois family clutched their head in disbelief while one managed an "Oh my God", as the smugness on Eve's face dissolved to one of confusion. But instead of giving the answer for the famous cartoon sailor - spinach - her mind went to the fast food chain known for a much different meal.
"That's the best. Chicken", Dee laughs as he does Eve's dance.
The Tomlin family immediately buzzes in with the correct answer to secure their win, but all social media users could talk about was Dubois' gaffe. As it turns out, she was the only one on the planet with that answer, as the answer board showed a big red X when asked, "Show me chicken!" He was correct, and the Tomlins advanced to the Fast Money round.
Eve was first to the buzzer with her answer. Whoever gets it, you're playing for $10,000.
It only took a few moments for Dubois to realize her mistake, flashing the camera a large wide-eyed look of disbelief at the silly revelation.
The contestant also thanked the company on Twitter for its offer.