filha da puta - wouldn't hat be daughter of a bitch? Grossa vaca - big cow. May not sound "so bad" in english to call someone a cow but in portugese, french and probably some other languages - calling a girl a fat cow is a VERY BIG BAD insult.
...although - upon brief gathering of my thoughts, I think you might wanna learn things a little more practical than ways of making people angry or just telling them off. Que horas? = what time is it or could you give me the time? Por favor = please. Ombrigado = thank you (to a man). Ombrigada - thank you (to a woman).
Sorry, just a correction: Que horas são? = what time is it or could you give me the time? Por favor = please. Obrigado = thank you (to a man). Obrigada - thank you (to a woman).
here are some other useful portugese words as well as some phrases merda, merda, puta, filho da puta, chupa meu pau, lambe minhas bolas, translation shit,fuck,****,motherfucker,suck my dick,lick my balls,