MEANING: verb tr., intr.: To spend lavishly or wastefully.
verb intr.: To make an ostentatious display.
noun: An extravagant or ostentatious display or expenditure.

ETYMOLOGY: Perhaps a blend of splash + surge, or maybe imitative. Earliest documented use: 1828.

SPLUGE - when the sled breaks through the ice and goes into the water

'SPLUMGE - What's that behind the peacock?

SPLURGEN - 1. the source of that expensive caviar you ordered for Brunch;
2. spending the money anyway