go on a junket

In 1984 he went on a junket to Las Vegas and played poker for the first time in his life.

He was going to continue in the family business, but when he was 16 he went on a junket to Las Vegas, Nevada.

The senator is going on a junket--uh, a fact finding mission--to Ethiopia on the 12th, so we'll wrap by Tuesday."

It did strike him as odd, perhaps, that merchants did not dare to go on a junket or plan a congenial dinner without pretending to themselves that it had some business significance.