Top Definition
To fornicate in a well know UK supermarket. Note - the term applies to any supermarket, the term is just good.
"Hey Chris, fancy a sainsfuck?"
"Sure thing, but lets avoid the canned goods aisle, apparently some kid's vommed."
#vom #supermarket #sex #funny #peanut butter
by The King... February 07, 2008
5 Words related to Sainsfuck
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