(WALK) [verb] [I usually + adverb or preposition] - to walk quickly with large noticeable movements, esp. to attract attention or show that you are angry"Right, don't expect any help from me in future!" he said and flounced out of the room.The children were flouncing about the room pretending they were in a fashion show.
FLOUNCE
Meaning of FLOUNCE in English
Cambridge English vocab. Кембриджский английский словарь. 2012