Like a marble in a Codd-neck Klein bottle
The phrase Like a marble in a Codd-neck Klein bottle (and similar variations) typically refers to an expression of fatigue and exasperation in response to performing a repetitive task in an enclosed space.
Literal usage
The phrase may also be a literal referance to a specific marble, in a specific Codd-neck Klein bottle.
In such cases, the marble typically confines a demon (nonfiction).
Compare Maxwell's Demon (nonfiction).
Extract of Radium
Extract of Radium is commonly shipped in Codd-neck Klein bottles.
The Codd-neck feature is sometimes omitted, typically when using Extract of Radium to commit a temporal de-assassination.
Empty bottles with traces of Extract of Radium has been reported near the Igloo of Solitude. Reports do not indicate whether or not the bottles are Codd-necked.