ELI5: Explain Like I'm 5

Technical debt

Technical debt is like owing money to the bank. When you use the bank's money to buy something, you can have it right away but you have to pay the bank back. It's the same with technical debt - when you use shortcuts to get something done faster, you can have it now but you will have to pay for it later. It takes extra time to go back and fix all the shortcuts you took and that time costs money!