the.com/chalkline

The outline that proves you existed, drawn only after you don't.

means A chalk outline traced around a body at a crime scene to mark its exact position before it's removed.

from A straightforward compound of 'chalk' (the soft limestone used for marking) and 'line.' The term rides on the older trade practice of snapping a taut, chalk-coated string against a surface to leave a straight guide mark — carpenters and masons used this 'chalk line' long before it took on its grim forensic sense. The crime-scene meaning is a 20th-century extension, popularized more by film and television procedurals than by actual standard police practice, which rarely relied on chalk outlines as much as fiction suggests.

origin
Cops used it before cameras got good
myth
Rarely used in real forensics anymore
irony
Marks a body by tracing its absence
culture
Became noir shorthand for sudden death
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