This word can be used as a verb to indicate checking the
validity of a
suspect story. It is derived from the online
urban legend reference site: www.snopes.com.
That sounds fake. You should snopes it.
Also
She told me a story about a friend of a sorority sister who had a huge
pimple that eventually exploded hundreds of baby spiders on her face, but I
snopesed it, and that story is just an
urban legend.