bandeirinha

Etymology
From. lit. 'small flag'.

Noun

 * 1)  fickle person, who often changes his mind (especially in politics)
 * 2)  linesman person whose main function is to assist the referee, signaling infractions, ball outs, etc., with a small flag; assistant referee, line inspector

Noun

 * 1)   A small South American bird from the family, it has a long beak, a long tail and tapered wings, distinguished by its bright green plumage around the throat area