Matthew Morrison has admitted in the past to limiting himself to a diet of sweet potatoes the few days before a photo shoot. He says it tightens things up to make him look his best. On 'Chelsea Lately' (Weeknights, 11PM ET on E!) though, Chelsea Handler took a whole different meaning to the idea.

"So you actually do a sweet potato?" she asked. When he agreed, she clarified, "Like in 'American Pie.'"

Morrison gamely played along, detailing the process by which one might make like 'American Pie' with a sweet potato. One important detail, "You gotta do it oblong-wise."

Mr. Schuester! You'd better hope your kids from the 'Glee' Club aren't watching or you're going to have a lot of explaining to do tomorrow!