eiffel towerのようなどんな単語でも探してください。

To make a truly serious, solemn promise that you later casually announce you didn't mean, hadn't thought out properly and now have no intention of keeping.

After UK Lib-Dem MP Nick Clegg circa 2010
I've made a cledge to my missus that I won't smoke any weed on my stag trip to Amsterdam
walrus faceによって 2010年11月17日(水)