Parabox

(n) A shorter name for the box paradox. This paradox is about 2 boxes, box A and box B. Box A is inside box B, but box B is also inside box A.

Andrew: "Hey wanna get impressed?"
Greg: "Sure, as long as I don't explode again."
Andrew: "Remember Parabox?"
Greg: *implodes*
CIA: *abducts Greg*