For two weeks the UIMAT thread was very popular.
UIMAT = Unspeakable Incest menage-a-trois
Over the two weeks the U came to stand for
Unholy, Unwanted, Unlikely, Uniform, Union, Ugly, Unbelievalbe, and just about any other word that starts with U.
And PUIMAT also was used to be the Product of a UIMAT usually for a screengrab of someone with rat like, inbred features.
It is still used every now and then.
I am amazed that the gag is used for things that have nothing to do with Incest like screengrabs of buildings, cars, or just about anything else.
Posted by WEIRD_1