2 definition by Avery Longie

Top Definition

The coating that remains on the upper lip after drinking a glass of milk.

After drinking a glass of milk, the little girl said, "Look mommy, I have a milkstache!"

by Avery Longie September 27, 2007

To act in a goofy, silly manner.

Boy, you girls are being silly. When did you funny up?

by Avery Longie November 24, 2007