Definition of plounce in US English:

plounce

verb

English Regional
rare
  • 1with object To plunge or submerge in water; (in early use especially) to plunge into water as a punishment, to duck.

  • 2no object To plunge in or into water, mud, etc.; to flounder or wallow.

Origin

Mid 17th century. Apparently a variant of plunge; perhaps a blend of plunge and flounce.

Pronunciation

plounce

/plaʊns/