English slang which can mean feeling poorly or can describe something as useless or unfit for purpose. So if someone says they feel like shit warmed it means they are feeling extremely unwell or under the weather. But if it is their opinion of a device, person or product, it means that the device, person or product is a total WOFS.
Are you alright?”
“No, I feel like shit warmed over.”
by AKACroatalin August 19, 2016
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This expression is used to describe how terrible and/or disgusting something is. In common usage, it is always preceded by the word 'like'.
"His hangover made him feel like warmed-over fuck."

"Dude, your house smells like warmed-over fuck. When was the last time you opened the windows?"
by Teraloft April 25, 2009
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the last stages, deterioration of spirit and flesh, of one's lifespan, mental/esterical/physical signs/symptons of dying and/or last stages of development
The Pontiff looked like death warmed over discussing
the recent sexual abuse scandal.
by andybleu April 17, 2008
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