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Old 04-20-2007, 10:39 PM
stuyguy is offline
Join Date: Jun 2000
Location: New York, NY
Posts: 3,475
I think you'll find the expression originated in the phrase, "Well, slap my ass and call me Sally."

Sally was a common name for a mule/donkey/ass back in the day. (No, not the 1960s. I meant "back in the day," as in the 1860s and earlier.) You got such a beast of burden moving by slapping it in the butt.

The expression was a lighthearted way of calling oneself a fool -- or more aptly, an ass.

Last edited by stuyguy; 04-20-2007 at 10:40 PM.