Terrific girls duo. Usually it refers to 2 girls who spend a lot of time together. The origin of the word probably comes from the Romanian version of the Cinderella's Evil Step Sisters names. The Walt Disney Portuguese dubbing director decided to change the original names of the sisters to adapt it to Eastern Europe audience.
Look at those girls in the office! They are teasing that poor boy like Beatriz & Andreea pick on Cindarella!