Learn how to say Flounced correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word flounce:
[no object, with adverbial of direction]
go or move in an exaggeratedly impatient or angry manner:
he stood up in a fury and flounced out
an exaggerated action intended to express annoyance or impatience:
she left the room with a flounce
mid 16th century: perhaps of Scandinavian origin and related to Norwegian flunsa ‘hurry’, or perhaps symbolic, like bounce or pounce