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Silkwood shower 

A Silkwood shower is a very long, hot shower taken to disinfect and decontaminate oneself from environmentally acquired smells such as smoke or food.

The term stems from the name Karen Silkwood. She was a chemical technician who died under mysterious circumstances after raising issues of contamination at the plant where she worked.

In 1983 a movie named Silkwood was released which starred Meryl Streep, Kurt Russell, and Cher. There is a decontamination shower scene in that film which is the basis for the term being coined.
I had to take a Silkwood shower when I got home from that party since I smelled like an ash tray cooked on a open flame BBQ grill covered in hot sauce.
Silkwood shower by Anna Wolf November 28, 2007
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Karen Silkwood 

A really powerful, filth-stripping shower, which is necessary after undergoing the worst kinds of dirtying, including radioactive contamination.
"If he sleeps with that girl, he's gonna need a Karen Silkwood shower the next morning."
Karen Silkwood by ROPEMAN October 5, 2004

silkwooding 

When a parent covers their child in some horrible aerosol chemical bug spray or spray on sunscreen and coats the child and every living thing nearby in the fallout.
Man that mom was silkwooding her three kids back there with the 50 SPF. I was lucky to get out alive. I think I've got lung cancer now.
silkwooding by sunfish7890 July 9, 2014
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or, in a positive usage:

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Brent: he just tossed me a slop grenade
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NYC people who migrate north to Quahog, RI to see the leaves in the fall.
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