Use this phrase whenever something is exciting or non dull
At Seb Keefe's house there is never a dull moment. NADM is the acronym
Use this set phrase to talk about something that's stressful and doesn't allow you to relax, like your job, raising children, etc.
You say this with a bit of humor in your voice, because "never a dull moment" seems to mean that something is exciting and fun. But what you really mean is that it's too exciting, so you never get to rest.
Never a dull moment going home.