bacon stretcher
An object that can be lobbed in to the category that the "Left Handed Smoke Shifter" resides in. The joke is commonly used on members of a younger group who have not heard of it before- "Hey, can you go get the bacon stretcher?". The the other members would then watch as the person would actually try to find it.
"Hey Little Jhonny, can you go bring me the bacon stretcher?"