/ flaʊns; NAmE / verb , noun
■ verb
[ v , usually + adv. / prep. ] to move somewhere in a way that draws attention to yourself, for example because you are angry or upset :
She flounced out of the room.
■ noun
1.
a strip of cloth that is sewn around the edge of a skirt, dress, curtain, etc.
2.
a quick and exaggerated movement that you make when you are angry or want people to notice you :
She left the room with a flounce.
► flounced adjective :
a flounced skirt
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WORD ORIGIN
verb and noun sense 2 mid 16th cent.: perhaps of Scandinavian origin and related to Norwegian flunsa hurry, or perhaps symbolic, like bounce or pounce .
noun sense 1 early 18th cent.: from an alteration of obsolete frounce a fold or pleat , from Old French fronce , of Germanic origin; related to ruck in the sense ruck something up .