What does "loaded question" mean?

There has been this boy with whom I've been talking on and off with for 2.5 years now. He knows I like him but I'm just not sure about him. I've pretty much accepted that since nothing has happened yet, it's not going to in the future. However the other night I got drunk and we were talking about hanging out and flirting too. So in my drunken stupidity I asked him "oh so do you like me" and he responded saying that's a loaded question. I'm so confused as to hear that mean so sny insight would be appreciated!
What does "loaded question" mean?
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