Proceder means a "way of doing things" or someone's conduct, the particular code or style by which a person operates and expects others to respect.
In "E tu vai ter que aturar, esse é o proceder" ("And you're going to have to put up with it, that's the way to go"), the word insists that this is simply how things are done, no argument needed.
Get ready to meet Gloria Groove, the "princesinha da leste" [little princess of the east side] who's not here to play nice! In "O Proceder," she's all about owning her power and shutting down anyone who tries to bring her down. From the jump, she declares her independence, saying "Eu agarrei nessa porra quando fiz 18" [I grabbed onto this shit when I turned 18]. She's got no time for fake allies or those who pretend to be