It's in the Weird Al song "Lasagna", it's a spoof of "La Bamba". XD
I think he knew that, seeing as the phrase wasn't mentioned in the topic (I think). The question mark is approriate because the translation is "Understand, friend?"
Anyway, there is no activity in the kitchen at the moment, so it looks like I'll be eating peanut butter and jelly for tonight. (I had even MORE lasagna earlier, for lunch... SOMEONE has to eat it! Aaah, mama mia...)