ditz

The youngest of the Kennedy brothers, he treated her like a zany older sister—something of a ditz and a mischievous devil.

Even Ditz condescended to show his dexterity, as a juggler, with empty bottles.

Yes, it is easier to lose a thing now than to find it, interposed Ditz, with a cynical laugh.

Let my sisters ride in your carriage, otherwise Ditz will come and force his society on them—a thing I would prevent at any price.