1. When you think you know what should be done/take the lead in a situation or when you think that you can make the right decision.
2. When you want to vote on something.
Examples for "raise my hand"
1. -Who wants to go inside first?

-I'm raising my hand!
2. -Who did you vote for, Mark?

-I raised my hand for Trump.
by Cyrus Dark November 6, 2017
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when your cruising in your car and someone pisses you off, then you put the back of your hand out of the window and you raise and lower your hand in a quick motion. then they will be like "What the fuck are they waiving at?"
by DJ JC February 5, 2008
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