Grande detalhe GG = It means she´s a tranny and has a dick bigger than yours.

Bumbum completinho = She does anal.

Oral completo = She lets you cum in her mouth.

Inesquecível = unforgettable

Leitinho = Milk. Yes, as in cum.

And, the most important thing you should know: "Boneca" is a slang for tranny.