Code Tank
Noun · Slang & Abbreviations
Definitions
A system or component that is heavy, hard to move, but very difficult to knock over. In engineering slang, code tank can be praise for durability or criticism for excessive weight and inertia.
In plain English: A heavy but robust piece of code or system.
Example: "The old billing core was a code tank, ugly and cumbersome but still surviving traffic spikes and partial dependency outages that took newer services down."