PUMAT
Usage An acronym commonly held to stand for "Product of an unspeakeable menage-a-trois", although there is some debate as to the meaning of the U. Simply stated, it referes to anybody who looks like a mix of any three celebrities or other things that should not have come together to create a person.
The term UMAT also pops up from time to time to suggest that three people are about to get it on.
Origin Unknown.
See Also UIMAT
Examples
From http://cap.neoleo.net/cap03/Cap128.htm:
From http://cap.neoleo.net/cap03/Cap141.htm:
From http://www.glitterrock.org/so0018.html:
From captions.50g.com/:
Examples