improve the occasion

verb2

1. •
   To point out a moral to be learned from some event that has just occurred.

   • Then he improved the occasion to give young Finland a lecture upon the impropriety of marrying for money. — 1880
2. •
   (slang, no longer used) To celebrate with food or drink.

   • I told Jos. of my intentions, and he improved the occasion by eating four or five meals, and drinking at least a gallon of beer and a bottle of gin at my expense. — 1868