A miscreant or otherwise idle and worthless person.
How to level up the insult 'geekburger'. All of this comes from Full House, of course. See also Fast Food.
An out-dated way to call someone impudent or conceited.
Shut up, you Dick Tree.
Kind sir, might you lend a hand and add a funny insult?
Oh, I see you're wearing a tie today. Showboat.
One who is obnoxiously self-assertive and arrogant. Informal know-it-all also known as a saucebox, smart aleck, smarty, smarty-pants, wiseacre, wisecracker, or wise guy. See also Old-Timey.