Here's a quick description of random software development terms. Most developers probably know them but someone could find something new.
Broken Windows Theory
If there is a low-quality part of a codebase, people maintaining the codebase tend to produce more low-quality code.
Taking shortcuts by making intentionally suboptimal design or implementation decisions. Not always bad, not all debt have to be paid.
Using your own unfinished product in day-to-day work while developing it.
Doing something that could lead to problems.
A bug that doesn't repro when debugging.
Applying a method that works in one context in a different context without knowing why it worked in the original context.