To make a person release sexually, usually in the form of a creamy liquid, sometimes shot, other times spilled depending on the consistency of the formula as well as the size of the firing arm and the accuracy of the "gunman".
Juice is a word used to insult your friend or friends that are acting in a manner you do not like. Juice can be used instead of bitch pussy punk looser cornball soft or uncooperative but means the same thing.