A sexual act in which a waterbed is stripped down, doused with your favorite lubricating solution, and then the sex happens.
"Bob, why are you hosing down your mattress?"
"The wife and I had a good old fashioned New Jersey Slip-N-Slide last night."
"The wife and I had a good old fashioned New Jersey Slip-N-Slide last night."
by Thomas Haislip November 12, 2008
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