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A very bad smell. Stinky.
A combination of the words: 'skunk' and 'anus'.
Background information: My Scottish mother-in-law (I'm Canadian) and are always (jokingly) finding new ways to insult eachother. 'Skaynus' was a new way!
"My mother-in-law smells like skaynus, so i told her to go have a shower immediately."
by poutinepete September 14, 2014
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