The first greyed card takes me back to Summer of 1995 in Boracéia Beach, north coast of São Paulo - Atlantic Ocean where I was camping with my family at Colônia de Férias da Polícia Militar de São Paulo.

Camping site was full. Kids everywhere. Steamy weather. The manager, Dona Tina, an old tiny dirty-mouthed Portuguese lady, was passing near someone's tent when I hear her shouting out loud: 

"Porra, caralho! Mas que cheiro de mijo!"

Everybody broke in laugher.

The tent had a mattress laying outside in the sun because someone on that family pissed on it during the night and the acrid smell provoked that reaction in Dona Tina while she was passing.

Second blueish card, with the word Oxe reading in red, is an expression used in the Northeast.