1 definition by Pimpsta G

Top Definition
A term used to describe an angry or extremely unpleasant surprise in reaction to information or a situation. Akin to "shitting a brick," the term derives its meaning from the horrific experience that "shitting nails" would be, and thus a person suffering through it would naturally be in a pissy mood.
"Evelyn shit nails when I told her I didn't really get a vasectomy."
by Pimpsta G February 26, 2008

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