パーっと
Meanings
Adverb
1. with energy (of parties and such); enthusiastically; going all out
Other readings
Examples2
子供
Don't think about leaving money for your kids, use it all up and enjoy yourself with flair.
結婚式
About the wedding ... It's a once-in-a-lifetime chance to be the main attraction, so instead of doing it on a shoestring, why not pull out all the stops and make a great show of it?