A picture or image of a person or animal with their hands raised toward their face (sometimes with their mouth open) and their fingers open and grasping the air.
Pic Caption: Invisible Sandwich!
by Llama Llama Duck October 09, 2006
When someone has done a recreational substance that makes them move their jaw repeatedly as if eating a sandwich.
That dude has taken so much "X" that he looks like he's eating an invisible sandwich.
by Cracka Ass Cracka April 26, 2012