Code Tunnel
Noun · Slang & Abbreviations
Definitions
A mode or stretch of work where attention narrows tightly around one technical path while the outside context temporarily disappears. In engineering slang, code tunnel can be productive for hard problems and risky when it blinds people to larger effects.
In plain English: A narrow intense technical focus that blocks out the wider context.
Example: "He went into a code tunnel fixing the allocator bug and resurfaced hours later with the memory leak solved but no awareness that the release train had moved around him."