wtf does "maybe" mean?

Me: do you want to hang out with me tonight?
Friend: maybe...
Me: (in my head) WTF KIND OF RESPONSE IS THAT??? am i not the hot shit?

Yes folks, when people respond with "maybe," does that not just make you want to walk up to them and whack them with a baton? These days I judge people based on their maybe %, just sayin. The maybe % is defined as the % of time the respondent will flake. When she says maybe, 95% of the time it means no. Him, well he's 65%. In an ideal world, I would require people to include the maybe % whenever they respond with such a bs response.

For example:
Me: do you want to hang out with me tonight?
Friend: maybe 45%
Me: (in my head) you're a damn fool for not hanging out with me, time to fire up WoW...

That's much better.