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1.
Often confused with 'go pound sand' but more refined and less vulgar. To pound sand infers 'up an orifice' but to pound salt has more to do with a useless activity.
When the religious nut came to visit my house, I told him to go pound salt.
by berttwo July 24, 2008
 
2.
An inferior definition of the phrase "go pound sand" preferred by townie steakheads on the East Coast.
After trying and failing to get a spot at the Comedy Studio, Mr. McClown had no choice but to go pound salt.
by Tom Dustin May 06, 2005
 
3.
Originated in the salt mine making crystals from rock form. Midwestern homos sometimes use "go pound sand" for this phrase but they are wrong.
Person:"Hey, Do you need any help taking those off"?
Other person: "Nah, why don't you just go pound salt!"
by Wonder woman June 24, 2004