splurge
Pronunciation: (splûrj), [key] — v., n. splurged, splurg•ing,
—v.i. - to indulge oneself in some luxury or pleasure, esp. a costly one: They splurged on a trip to Europe.
- to show off.
—v.t. - to spend (money) lavishly or ostentatiously: He splurged thousands on the party.
—n. - an ostentatious display, esp. an extravagantly expensive one.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.