When you're asking someone for an explanation but all they ever give you is excuses.
Boyfriend : look, can we please just talk about what happened later?
Girlfriend: Yes, and I can't wait to hear your excusplanation about it.
Boyfriend : what's wrong? Why are you mad? What did I do wrong?
Girlfriend : everything! Please explain this <insert whatever made you mad here> to me!
Boyfriend: it wasn't me! I didn't do it! I don't know how it happened! I would never do that! I wouldn't lie! Please believe me even though I can't explain anything ever at anytime nor do I have to because I'm innocent!
Girlfriend: of course, i should have known. More empty excusplanations.