Definition of water-lapper in US English:

water-lapper

noun

  • In the Bible (Judges 7:5): any of three hundred soldiers selected by Gideon to fight the Midianites. Hence allusively: any particularly devout or zealous soldier.

Origin

Early 17th century. From water + lapper.

Pronunciation

water-lapper

/ˈwɔːtəˌlapə/