What is "guying"

Usage examples of "guying".

At normal times they are not only not patriotic, but go in for a mild guying of patriotism, with jokes about "God save the King", the Union Jack, etc.

It was that of a pipsqueak, backwoods evangelist, an unimportant nuisance back on Earth, but the butt of an occasional guying news story, but a man of no possible consequence.