Partido da Social Democracia Brasileira (PSDB)
It is a conservative party, not a social democratic party
Like in Portugal, kinda cute.
I don't know about Brazil, but there's a reason for the portuguese PSD name. After the 1974 revolution, anything who was associated with conservative or liberal values was toxic. Many center-right parties had to be imaginative and create names that wouldn't be associated with the old regime. So, the PSD original name was PPD (Popular Democratic Party) and the CDS, at that time viewed as a right-wing party, was called the Democratic Social Center.
Although the PPD was not center-right at the time, in fact it was center to center-left, it gained an enormous amount of support from rural and business voters as well the big support of the Catholic Church. The PSD adopted it's current name in 1976 and officially it's registered as PPD/PSD.
