Needlag
The wasted time caused when you are missing something essential in order to finish another task or procedure.
You are about to cook something but there is no butter, and butter is essential for that recipe, so you have to stop everything and go get it, causing a needlag.
You are about to release a website, but your client did not send the missing texts, so this stops the whole release, causing a needlag.
You are about to release a website, but your client did not send the missing texts, so this stops the whole release, causing a needlag.