When you spill your guts and reveal everything you've been feeling and holding inside you. This can be an angry outburst, but is usually a case of telling the object of your desire of how deep your affections go. After theemotional throw up, one usually feels a lot better as they got a weight off their chest.
To bring myself closure I sent my ex a message of emotional throwup and now I feel much better.
Giving a fascist/national socialist salute. The kind in which the right arm is extended forward and raised above the head level. Used as a sign of mutual respect and glory. This salute gets its name from its original use among soldiers in the Roman Empire. Although it it was commonly used by fascists, national socialists and other third-positionists in the twentieth century, it was not exclusive to these groups. For example, American school children were taught to throw up Romans while reciting the pledge of allegiance prior to World War II.
Guy behind a podium:
"The most precious possession you have in this world is your own people. And for this people, and for the sake of this people, we will struggle and fight, and never slacken, never tire, never lose courage, and never lose faith!"
Audience of thousands of people:
Let's all throw up a Roman right now!